polygon 2012

93

Upload: mdc-polygon

Post on 28-Mar-2016

243 views

Category:

Documents


2 download

DESCRIPTION

Polygon is Hialeah Campus’ multi-disciplinary online journal, featuring the academic work of our distinguished faculty and staff.

TRANSCRIPT

Page 1: Polygon 2012
Page 2: Polygon 2012

Editorial Note:

We, the editorial committee of Polygon, are pleased to publish the sixth issue of 2012 Spring Polygon includes six regular papers. Again we are pleased to present work from a diverse array of fields written by faculty from across the college. The editorial board of Polygon is thankful to the administration, staff and faculty of Hialeah Campus and Miami Dade College, in general, for their continued support and cooperation for the publication of Polygon. The editorial committee would also like to cordially invite the MDC community to submit their articles for consideration for the 2013 Spring Issue of Polygon. Sincerely, The Editorial Committee of Polygon Dr. M. Shakil (Mathematics), Dr. Jaime Bestard (Mathematics), and Professor Victor Calderin ( English)

Patrons: Dr. Ana Maria Bradley-Hess, Dean of Academic and Student Services Prof. Djuradj Babich, Chair of Computer and Management Sciences Dr. Caridad Castro, Chair of LAS Prof. Maria Jofre, Chair of EAP and Foreign Languages

Mission of Miami Dade College The mission of the College is to provide accessible, affordable, high--‐quality

education that keeps the learner’s needs at the center of the decision--‐making process.

Miami Dade College

District Board of Trustees Helen Aguirre Ferré, Chair

Armando J. Bucelo Jr. Marielena A. Villamil

Benjamin León III Marili Cancio

Jose K. Fuentes Armando J. Olivera

Eduardo J. Padrón, College President

Page 3: Polygon 2012

Editorial Notes

i

Guidelines for Submission ii-iii

Conceptual and Procedural Knowledge in Mathematics Education in the Case of Law of Exponents

1-23 D. Tsung

Teaching What to Think vs. Teaching How to Think in College 24-35 J. Guntin Towards Development of Critical Thinking

36-44 J. Guntin

Factorial Experiment Design to Analyze Fuel Consumption of a Vehicle 45-57 J. Bestard The Cost of Exclusion 58-73 M. Benitesl Critical Pedagogy and English Language Acquisition 74-84 M. Benitesl Comments about Polygon

Page 4: Polygon 2012

POLYGON: Many Corners, Many Faces(POMM)

A premier professional refereed multi-disciplinary electronic journal of scholarly works, feature articles and papers on descriptions of Innovations at Work, higher education, and discipline related knowledge for the campus, college and service community to improve and increase information dissemination.

Published by MDC Hialeah Campus Liberal Arts and Sciences Department (LAS).

Editorial Committee: Dr. Mohammad Shakil (Mathematics) Editor-in-Chief

Dr. Jaime Bestard (Mathematics)

Prof. Victor Calderin (English)

Editor

Editor

Manuscript Submission Guidelines:

Welcome from the New POLYGON Editorial Team: The Department of Liberal Arts and Sciences at the Miami Dade College–Hialeah Campus and the new members of editorial committee—Dr. Mohammad Shakil, Dr. Jaime Bestard, and Professor Victor Calderin —would like to welcome you and encourage your rigorous, engaging, and thoughtful submissions of scholarly works, feature articles and papers on descriptions of Innovations at Work, higher education, and discipline related knowledge for the campus, college and service community to improve and increase information dissemination. We are pleased to have the opportunity to continue the publication of the POLYGON, which will be bi-anually during the Fall & Spring terms of each academic year. We look forward to hearing from you.

General articles and research manuscripts: Potential authors are invited to submit papers for the next issues of the POLYGON. All manuscripts must be submitted electronically (via e-mail) to one of the editors at [email protected], or [email protected], or [email protected]. This system will permit the new editors to keep the submission and review process as efficient as possible.

Typing: Acceptable formats for electronic submission are MSWord, and PDF. All text, including title, headings, references, quotations, figure captions, and tables, must be typed, with 1 1/2 line spacing, and one-inch margins all around. Please employ a minimum font size of 11. Please see the attached template for the preparation of the manuscripts.

Length: A manuscript, including all references, tables, and figures, should not exceed 7,800 words (or at most 20 pages). Submissions grossly exceeding this limit may not be accepted for review. Authors should keep tables and figures to a minimum and include them at the end of the text.

Style: For writing and editorial style, authors must follow guidelines in the Publication Manual of the American Psychological Association (5th edition, 2001). The editors request that all text

1

Page 5: Polygon 2012

pages be numbered. You may also please refer to the attached template for the preparation of the manuscripts.

Abstract and keywords: All general and research manuscripts must include an abstract and afew keywords. Abstracts describing the essence of the manuscript must be 150 words or less. The keywords will be used by readers to search for your article after it is published.

Book reviews: POLYGON accepts unsolicited reviews of current scholarly books on topics related to research, policy, or practice in higher education, Innovations at Work, and discipline related knowledge for the campus, college and service community to improve and increase information dissemination. Book reviews may be submitted to either themed or open-topic issues of the journal. Book review essays should not exceed 1,900 words. Please include, at the beginning of the text, city, state, publisher, and the year of the book’s publication. An abstract of 150 words or less and keywords are required for book review essays.

Notice to Authors of Joint Works (articles with more than one author). This journal uses a transfer of copyright agreement that requires just one author (the Corresponding Author) to sign on behalf of all authors. Please identify the Corresponding Author for your work when submitting your manuscript for review. The Corresponding Author will be responsible for the following:

• ensuring that all authors are identified on the copyright agreement, and notifying the editorial office of any changes to the authorship.

• securing written permission (via email) from each co-author to sign the copyright agreement on the co-author’s behalf.

• warranting and indemnifying the journal owner and publisher on behalf of all co-authors.

Although such instances are very rare, you should be aware that in the event a co-author has included content in their portion of the article that infringes the copyright of another or is otherwise in violation of any other warranty listed in the agreement, you will be the sole author indemnifying the publisher and the editor of the journal against such violation.

Please contact the editorial office if you have any questions or if you prefer to use a copyright agreement for all coauthors to sign.

2

Page 6: Polygon 2012

Instructions for the Preparation of Manuscripts for the Polygon (THE TITLE IS HERE) (12 pt, bold, 32 pt above)

NAME IS HERE (11 pt16 pt above, 32 pt below)

ABSTRACT. Abstract is here, not exceeding 160 words. It must contain main facts of the work. (11 pt)

Key words and phrases: (11 pt)

1. Introduction (11 pt, bold, 24 pt above, 12 pt below)

Main Body

REFERENCES (11 pt, 30 pt above, 12 pt below)

[1] M. Abramowitz and I. A. Stegun, Handbook of Mathematical Functions, with Formulas, Graphs, and Mathematical Tables. Dover, New York, 1970.

[2] J. Galambos and I. Simonelli, Products of Random Variables – Applications to Problems of Physics and to Arithmetical Functions, CRC Press, Boca Raton / Atlanta, 2005.

[3] S. Momani, Non-perturbative analytical solutions of the space- and time-fractional Burgers equations. Chaos, Solitons & Fractals, 28(4) (2006), 930-937.

[4] Z. Odibat, S. Momani, A Application of variational iteration method to nonlinear differential equations of fractional order, Int. J. Nonlin. Sci. Numer. Simulat. 1(7) (2006), 15-27. (11 pt)

XXXX YYYYY. Received his Master’s/Ph. D. Degree in Physics from the University of ZZZZZ (Country) in 1987 under the direction of Dr. M. N. OPQR. Since 1989, he has been at CCCC College in Hawaii, USA. His research interests focus on the Fractals, Solitons, Undergraduate Teaching of Physics, and Curriculum Development. (11 pt)

Department of Liberal Arts & Sciences (Physics Program), CCCC College, P. O. Box 7777, Honolulu, Hawaii, USA.e-mail: xxyy@ccc (11 pt)

.

3

Page 7: Polygon 2012

Polygon Spring 2012 1

Conceptual and procedural knowledge

in Mathematics education-

in the case of law of exponents

David H. Tseng

Contact: (305)-237-0562

Email: [email protected]

Page 8: Polygon 2012

Polygon Spring 2012 2

Abstract

In this paper, a detailed research into students’ understanding of conceptual

knowledge vs. procedural knowledge over the law of exponents has been conducted. An

examination from students’ perspective will help teachers to teach law of exponents

more effectively. This understanding can potentially impact the curriculum design to

allow students to know the law for a longer time and not depending on their

memorization on the law of exponents for a short while (usually before a test).

Page 9: Polygon 2012

Polygon Spring 2012 3

According to an article entitled “procedures over concepts: the acquisition of

decimal number knowledge” by Hiebert and Wearne of University of Delaware,

conceptual knowledge is defined as knowledge of those facts and properties of

mathematics that are recognized as being related in some way. In contrast, procedural

knowledge is characterized by the absence of embedding relationships. This procedural

knowledge contains the following two parts:

1. Part 1: the knowledge of written symbols in the synthetic system.

2. Part 2: the set of rules and algorithms that are used to solve mathematics

problems. Therefore, conceptual knowledge is about relationship while

procedural knowledge is about rules and strategies to solve problems.

Students need to use both knowledge, but more important, they need to

connect these two knowledges together. Lacking either knowledge, a

complicated problem cannot be solved thoroughly. However, some easy

basic exponential problems, such as , can be solved as

without much conceptual knowledge involved. Students can simply apply

the law of to get the correct answer. However, the

conceptual knowledge would be helpful to recognize that the exponential

part of the answer should be a+b, instead of ab.

According to Hiebert’s article (1980) entitled “children’s mathematics learning:

the struggle to link form and understanding”, there are 3 sites where links between

conceptual and procedural knowledge are specified. The first site is the initial point in the

problem-solving about interpretation of the problem. In the example of , the

base of x and exponents of a and b must be interpreted as exponential symbols. The

Page 10: Polygon 2012

Polygon Spring 2012 4

multiplication of “X” is the operational symbol. This symbol refers to the algorithm on

relationship that exponent a should add to exponent b, instead of ab. This connection

between exponential symbol (procedural knowledge) and operational symbol (conceptual

knowledge) at site 1 are essential for establishing connections for the remaining sites.

The site 2 is about execution of procedure. In the example

of , students execute the rule by adding a to b. However, students

may not have conceptual rationale as to why a + b, instead of ab. Even if they got the

right answer, they have not obtained mathematical proficiency to explain what is wrong

with the answer of exponent ab.

The site 3 is the solution evaluation. In this site, it provides connection between

conceptual and procedural knowledge. If connection is fully understood, the solution will

be evaluated properly. Actually, students will be more confident about their answers. It is

not just procedures (what) that have been executed, but the conceptual knowledge (why)

has been applied. For example, if students know the concept of means and

means then would be incorrect because 3 ’s add 4 ’s means 7 ’s. So,

at site 3, students will have a feeling about whether their answers make sense or not. This

feeling came from conceptual knowledge. On the other hand, if students have no

conceptual knowledge, they would not have the confidence that their answers are right,

because they don’t have conceptual rationale to evaluate the result.

So far, it has been emphasized that conceptual knowledge is important to know

why the procedural knowledge provides whatever it has provided. However, during a

test, procedure knowledge has advantage of obtaining answers quickly by shortening the

thinking process on why (conceptual knowledge). The conceptual knowledge can still be

Page 11: Polygon 2012

Polygon Spring 2012 5

applied to evaluate the answer for correctness. However, this evaluation process should

be reserved as the last step to double-check the answers after all test problems have been

answered. This is particularly true when taking SAT or other tests for which there is

almost no time to evaluate every answer by applying the conceptual knowledge.

In an article entitled “the strands of mathematical proficiency”, it describes

mathematical proficiency should contain the following 5 components:

1. Conceptual understanding

Conceptual understanding refers to an integrated and functional grasp of

mathematical ideas. It is a comprehension of mathematical concepts,

operations and relations.

2. Procedural fluency

Procedural fluency refers to skills and knowledge in performing a procedure

appropriately. This includes when, how and what to do with method(s) of

calculation.

3. Strategic competence

Strategic competence refers to the ability to formulate, represent, and solve

mathematical problems.

4. Adaptive reasoning

Adaptive reasoning refers to capacity for logical thought, reflection,

explanation and justification. It is a logical capacity in identifying the

relationships among concepts and situations. It includes not only informal

explanation and justification, but also intuitive and inductive reasoning based

on pattern observed, analogy and metaphor.

Page 12: Polygon 2012

Polygon Spring 2012 6

5. Productive disposition

Productive disposition is a habitual inclination to see mathematics as a

sensible, useful and worthwhile tool to problem-solving. To develop a

productive disposition requires frequent opportunities to make sense of

mathematics, to recognize the benefits of perseverance and to experience the

rewards of sense making in mathematics.

Since these 5 components are interrelated to each other, the solving of

mathematical problems relies on all 5 components. In the area of law of

exponents, it is easy for teachers to jot down 10 laws of exponents. It may be easy

for students to memorize these 10 laws for an immediate quiz or test. But it is not

easy for students to remember these formulas after a longer period of time. The

difference comes from the mathematical proficiency. If students have

mathematical proficiency, these 10 laws of exponents will make sense to them. As

such, they can remember laws easier and the memory will last much longer. On

the other hand, if students just bluntly remember the formulas without any

common sense built into the memory for mathematical proficiency, their memory

about these laws can not last long. Furthermore, they will subtly develop an

attitude of disliking Mathematics due to boring memorization. This is contrary to

the fifth component of productive disposition.

In discussing the third component of strategic competence, these 10 laws of

exponents can be strategically classified into 4 categories for easy memorization. From

my personal teaching experience, I have found that it will be easier for students to

remember the 10 laws by classifying them into the following 4 cases:

Page 13: Polygon 2012

Polygon Spring 2012 7

1. Basic operations case

2. Separation case

3. Distribution case

4. Miscellaneous case

Refers to attachment 1, we will find that in the basic operations case, 4 out of 10

laws are introduced. Their exponents to the base number of x are associated with the

following basic operations:

1) 2) 3) 4)

In the separation case of the formulas, the radical sign will be separated by half. In the

distribution case, the power of is distributed to different bases, say and .In the final

miscellaneous case, we introduce 2 unique formulas: one with 0 as exponent, the other

one uses a negative sign as exponent. With the above mentioned strategy, the 10 laws of

exponents become easier to remember. Without these classified cases, students will have

a hard time remembering 10 different, unrelated formulas. In the first component of

mathematical proficiency--- conceptual understanding, students need to see examples

first before each law of exponents is introduced. For example, in the first law of

, students need to see an example that . It means

. Therefore, they will realize that exponents should be added to become 3,

instead of being multiplied to produce 1x2=2. This simple example has the following

benefits for student who is struggling to memorize the formulas:

a) Memorization will become easier and will last longer, because students know the

relationship between exponent 1 and exponent 2.

Page 14: Polygon 2012

Polygon Spring 2012 8

b) Even if students forget the formulas during a test or quiz, they can always conduct

a simple mathematical experiment to recapture the formulas from their memory.

They simply ask themselves which one is more reasonable?

? or ?

c) With common sense built into memorizing the formulas, students can recall the

formulas without much trouble. Hence, their confidence and interest in the area of

law of exponents will be increased as they practice more exercise problems.

In the fourth component of mathematical proficiency- adaptive reasoning, teachers

should point out the following two formulas as shown below:

a) and are horizontal type formulas.

b) and are vertical type formulas.

It is this kind of reflection or explanation which will help students to remember the

category of distribution or separation. There will be basically two formulas. These two

formulas are horizontal type versus vertical type.

With the above mentioned 4 components, interwoven into one another, the second

component of procedure fluency becomes achievable because students remember these

laws well due to their understanding of each law of exponent. Therefore, solving an

exponential problem is nothing but applying these laws as procedures. Actually, each law

is like a procedure. A complicated exponential problem means more procedures should

be applied.

Next, we are going to analyze learning interference. This interference was

identified in chapter 12 of Hiebert and Wearne’s book entitled “procedures over

Page 15: Polygon 2012

Polygon Spring 2012 9

concepts- the acquisition of decimal number of knowledge”. When students are given

two kinds of learning- relational learning for meaning and instrumental learning for

procedure-skill development without reasons, there exists a possible interference.

Actually, in Hiebert and Wearne’s book, they pointed out 3 kinds of interferences as

followed:

1) Cognitive interference:

This interference occurs when previous understanding is powerful and affects

subsequent learning. Teaching rational learning with reasons becomes important.

2) Attitudinal interference

The second interference is called “attitudinal interference” as mentioned in

chapter 12 entitled “interference of instrumental instruction in subsequent

relational learning by Dolores D. Pesek and David Kirshner. Example in the law

of exponents, students thought that all laws refer to the same base (refer to

attachment), therefore, and may be treated mistakenly as x + y.

However, these two terms are not totally unrelated as they appear. Students did

not examine closely into the relation of 4 and 2. If they do, they may discover that

= 2 log 2. With this connection identified, and become

additive by finding an LCD (least common denominator) between log 4 and log 2.

1. Metacognitive interference

This is the interference that derives from both cognitive and attitudinal

varieties. When example of is given to students,

students may be busy trying to simplify variables and their powers within

the parenthesis, students fail to recognize that there is a zero outside

Page 16: Polygon 2012

Polygon Spring 2012 10

parenthesis which can give them a quick answer of one as indicated by the

formula in attachment. Another possible metacognitive interference is

when students find that this problem is so complicated they my simply

give up. If they do not have such an attitude, they can examine all powers

and realize the outside power of zero would produce one as a quick and

easy answer.

Although lack of experimental data on the law of exponents, the

following two different types of treatments about relational learning and

instrumental instruction offers some interesting findings. These findings

are quoted from an article entitled “Interference of instrumental instruction

in subsequent relational learning” by Dolores D. Pesek and David

Kirshner. Their findings are based on two groups of study:

1. The I-R treatment group- teach students with instrumental instruction

first then followed by relational instruction.

2. The R-O treatment group – teach students with relational instruction

only.

Their findings are summarized below:

1. The R-O interviewees were able to make more sense of formula

despite their lack of instructional guidelines.

2. The I-R interviewees relied heavily on formulas without much

understanding of its meaning. This implies a metacognitive

interference may have occurred.

Page 17: Polygon 2012

Polygon Spring 2012 11

3. Instrumental instruction should not be preceded by relational

instruction. Hence, interference of preoccupied knowledge can be

avoided. This improvement can be considered as a potential

classroom reform.

Based on experience on the findings by Pesek and Kirshner, I can borrow

their experience in the area of exponential laws in the following manner:

a. Always explain the meaning of law of exponents by examples first.

Otherwise, students will be confused by the relationship between base- to-

base or power- to-power when coupled with basic operations (addition,

subtraction, multiplication, and division).

b. In the example of exponential laws, the procedural learning of formulas is still

important because a complicated problem requires several laws to get to the

final answer. If a student only has a fundamental understanding about the

exponents without memorizing the formula, he or she will be slow in solving

problems or maybe even blocked in the thinking due to the lacking of the

adequate formulas.

The development of conceptual knowledge is through constructing relationships between

pieces of information. As to how the process of a relationship is developed, the literature

of Psychology and Mathematics education provides a varieties of insights and theories. In

this research paper, I will introduce two types of growth in conceptual knowledge of

learning Mathematics.

1) Observation

Page 18: Polygon 2012

Polygon Spring 2012 12

In the example of , students observe that there are ’s and ’s of base ,

therefore, the total exponent should be . This is a direct observation to develop their

meaningful learning as a conceptual knowledge about the additive feature of law of

exponents. Once this basic formula is understood, any simple problem such as

would fall into the category of procedural knowledge. This kind of

observation is direct and visually achievable. But if the observation process takes place in

an abstract, non-visual manner, it will be a bit harder to obtain the complete conceptual

knowledge. That’s why the next type of process which develops a complete conceptual

knowledge is called creation.

2) Creation

This process starts with observation, but creation will be needed to connect existing

knowledge to new information that is just entering the system. In the example of

, the existing formula is apparently insufficient. Because there is

an additional c introduced and the problem becomes challenging. In this example,

students need to be conceptually creative about , therefore, the original

problem becomes a typical case of , which is . Meanwhile, , so

. The final answer is achieved by applying another law of exponent

which says . Therefore, original problem which seems complicated and

unsolvable has now become easy and solvable. It requires the creation of , then

through the law of to obtain the final answer. Finally, after the use of

creativity, the conceptual knowledge can grow almost infinitely.

Page 19: Polygon 2012

Polygon Spring 2012 13

If the student conducts a careful observation of the first two conclusions by listing

his/ her findings as below:

If the student has a sharp observation capability and rich imagination, he/she may

discover a new “formula” as this one: or even as complicated as:

.

In views of the combined procedural and conceptual knowledge, there are 3 types of

exponential problem solvers. In a rather complicated exponential function simulating

exponential growth in a spiral shell, a research entitled “purposeful choice: building

mathematics through inquiry”, found the following different thinking processes have

been utilized by basically 3 kinds of problem solvers:

a) Problem solving expert clarify goals, organize, represent and interpret with

varying levels of flexibility, monitor self and group solution progress, and

analyze/ evaluate solution strategies. For details, see DeFranco & Hilton’s article,

1999, “ Distinguishing features of mechanical and human problem solving”

Journal of Mathematical Behavior, 18, 79-84 and also see Greaser/ Person/

Huber’s article, 1992, “Mechanisms that generate questions”.

b) Novice problem solvers rush to use a memorized algorithm, focus on superficial

features of a problem and interpretation of explicit material and lack evaluative

monitoring of progress (see DeFranco & Hilton’s article 1999).

Page 20: Polygon 2012

Polygon Spring 2012 14

c) Transitional problem solvers, in contrast to experts and novices, exhibit expert-

like problem solving behaviors in complex domains but may not have extensive

content knowledge, see Walter, J.G. 2004, Tracing mathematical inquiry: High

school students mathematizing a shell. Dissertation Abstracts International, 64,

(12), 364A (UMI no. 3117648). Also see Greaser/ Person/ Huber’s article, 1992,

“Mechanisms that generate questions”. Solvers keep practicing exponential

problems and gain more experience in both conceptual and procedure knowledge,

they eventually will become expert problem solvers themselves.

The difference in the above 3 kinds of problem solvers comes primarily from

problems solver’s conceptual understanding. The novice problem solvers know

little about concept, therefore, he/she just rush to apply formula or algorism as a

procedure approach. They may or may not get the correct answer. On the other

hand, the expert and transitional problem solvers have better conceptual

knowledge, so they are working toward the correct direction. The only difference

between the expert and transitional problem solvers is that the former one has

extensive content knowledge than the later one. But if the transitional problem

continues to practice, they eventually become problem-solving experts.

Since developing relationships which connect pieces of information, data,

formulas, or facts is the key for conceptual knowledge, I am going to take a closer look at

the relationship itself.

In chapter one of the book entitled “conceptual and procedural knowledge: the

case of mathematics”, two kinds of relationships were proposed as follows:

1) Primary level of relationship:

Page 21: Polygon 2012

Polygon Spring 2012 15

This level is logically and visually apparent. It is like when solving a right

triangle problem, it is visually and logically apparent that Pythagorean

Theorem may probably be needed for solving the right triangle problem.

A typical example in the area of exponential law would be like:

Students need to construct a relationship between log in the numerator versus

log in the denominator. These two relationships are essentially visually

available and are actually given in the 10 laws of exponents as procedural

knowledge. Therefore, this example demonstrates a primary level of

relationship which is visually apparent.

2) Reflective relationship:

This is a higher and more abstract level of relationship. It requires imagination

and the creation of something different than the given pieces of information.

The higher the reflective level of relationships, the more creation will be

required. Example in the area of exponential law of this reflective level of

relationship can be seen by the following example:

log3x3+log273x= -

The challenge presented here is how to connect - with the other side of the

logarithmics. Creative thinking to find the “mysterious relationship” will be

needed at a higher and abstract manner.

According to the “Growth in Mathematics” article, the creative thinking

needed for the solving of this problem requires more psychological processes

Page 22: Polygon 2012

Polygon Spring 2012 16

such as primitive knowing, image making, imaging having and property

noticing. If the problem still cannot be solved, then the “folding back” process

will be needed over and over again until the barrier(s) of the challenging

problem can be broken through.

For Mathematics competition problems, usually more than one barrier is

presented. These types of problem will be very challenging and the

psychological reward is “potentially greater.” The students who finally solved

the problem will have tremendous gain in “productive disposition” as

mentioned in the article entitled “The Strands of Mathematical Proficiency.”

The following part deals with issues about mathematical education on exponential

functions :

1) Issue about the teacher’s understanding for the applied exponential

problems using covariational reasoning.

The National Council of Teachers of Mathematics Principles and Standard

(NCTM, 2000) advocates for high school and college mathematics curriculum to

include the topic of exponential functions and conceptually multiplicative

behavior through application problems from the real world.

Few papers discussed the role of covariation in the learning of exponential

functions. In Carlson Jacobs, Coe, Larsen and Hsu’s article (2002) entitled

“Applying covariational reasoning while modeling dynamic events,” covariational

reasoning was defined “to be the cognitive activities involved in coordinating two

Page 23: Polygon 2012

Polygon Spring 2012 17

varying quantities while attending to the ways in which they change in relation to

each other (pg354).”

In Strom’s study about high school science and Mathematics teachers’

understanding on applied problems of exponential functions, Strom had an

interesting finding that even teachers have difficulty with interpreting

exponentiation within functions as a dynamic process. Coordinating images of

two quantities changing in tandem over time proves to be a weakness for many

high school teachers in the study. As a result of this study and findings,

covariational reasoning abilities and ideas of proportionality among high school

math and science teachers should be strengthened. This is particularly true in the

application problems of decay and half-life of radioactive material.

In Strom’s article, it also mentioned that building multidirectional

covariation ability (e.g. interpret graph from right to left and left to right) will

provide a powerful mechanism for increasing the ability to reason through

exponential function’s behavior.

In another study done by Strom entitled “secondary mathematical growth

and decay: the case of Ben,” Storm discovered how emphasizing exponentiation

as a process can result in an increased ability to describe exponential behavior in

more powerful ways. The study, conducted by Strom, belongs to conceptual

knowledge and not procedural knowledge. With this study on understanding

reasoning abilities, whether from teachers or students, a practical guidance was

offered to develop curricula activities on exponential functions. Because findings

from Weber’s study suggested that students benefit from a more conceptual

Page 24: Polygon 2012

Polygon Spring 2012 18

understanding of exponential operation as opposed to rote memorization of

formulas as procedural learning. As an interesting activity to stimulate students’

conceptual understanding on exponential functions and its behavior, the following

activity can be provided to students as a group project to help them develop

conceptual understandings in the initial learning of the concept of exponential

growth :

2) Issue about misperception of exponential growth.

a. In a paper conducted by Willem Wagenaar of the Netherlands, entitled

“misperception of exponential growth and psychological magnitude of

numbers” which was compiled in a book called “social attitudes and

psychophysical measurement”, Wagenaar found people underestimate the

increase of the series 3,7,20,55,148…….. for but correctly

perceive the increase series 1,10,100,1000, …….. for . This is

because people usually have a better understanding about the base of “10”

rather than the base of “e”. Since people do not feel comfortable with

growth rate of e, they tend to grasp the meaning of exponential increase by

taking the ratio of 2 successive numbers, instead of the growth rate of

overall picture.

b. Wagenaar also found another misperception of exponential growth. People

seem to underestimate the increase of the series 3,7,20,55,148……. But

correctly perceive the decline of the series

22026,8103,2981,1097,403……… A possible explanation is the increase

of the series has no bound and decline of the series eventually stop to 0.

Page 25: Polygon 2012

Polygon Spring 2012 19

As such, insufficient adjustment was made in exponential growth case

results in underestimation.

Based on the above 2 misperceptions, the misperception of exponential

growth is a societal phenomenon. The continuous intuitive

underestimation of growth is caused by psychophysical transformation

applied to the base number and dimension of the exponents.

Conclusion

Conceptual understanding is the key for the development of procedural

understanding. It is the essence of learning with understanding and not just memory

work. As a final conclusion of this research paper, the following items summarize the

findings with suggestions for learning and teaching exponential functions, exponential

laws and the associated application problems as below:

1) High school teachers may need to improve their fundamental understanding on

exponential functions before their students can become confident in exponential

functions.

2) In teaching exponential functions, particularly about application problems in

science, teachers should consider the incorporation of interesting projects on

exponential functions as activities in the design of curriculum.

3) More research should be conducted into the thinking mind of students to address

the following areas as a minimum:

a) What are the possible confusion on exponential functions and why is the

confusion arises in students’ mind as it is?

Page 26: Polygon 2012

Polygon Spring 2012 20

b) Was there any prior knowledge from previously learned Algebra presents

barrier to learn new topics of exponential functions and exponential laws?

c) Develop interesting projects or activities of real world problems so that each

of the 10 laws of exponents can be best utilized for problem solving.

d) Other than 10 laws of exponents which summarize basic conceptual

understanding in formula form, is there any missing concepts or links for

students’ conceptual understanding of exponential function to be further

improved?

e) For smart students who already know the 10 laws of exponents and are

capable to solve average problems, the challenge on educating these students

is to increase their productive disposition. Therefore, perhaps collecting

exponential competition problems on exponential functions from various

domestic and foreign sources will be beneficial to further stimulate smart

students’ intelligence and make their conceptual understanding and procedural

fluency closer to perfection.

Page 27: Polygon 2012

Polygon Spring 2012 21

References

1. Hiebert, J. (1984): Children’s mathematics learning: the struggle to link form

and understanding Elementary school Journal, 84, 497-513.

2. “Conceptual and procedural knowledge: the case of mathematics” edited by

James Hiebert.

3. National Research Council (2001), “Helping children learn mathematics”

Washington D.C: National Academy Press.

4. Chapter 4 “representation and translations among representations in

mathematics learning and problem solving” by Richard Lesh, Tom Post &

Merlyn Behr.

5. “Exponential functions, rates of change and the multiplicative unit”. By Jere

Confrey and Erick Smith. Educational Studies in Mathematics 26:135-164,

1994. Copyright of 1994 Kluwer Academic Publishers.

6. Carlson, M.P. Jacobs, S, Coe E, Larsen S. and Hsu E (2002). Applying

covariational reasoning while modeling dynamic events: A frame work and a

study Journal of Research in Mathematics Education.

7. The role of covariational reasoning in learning and understanding exponential

functions by April D. Strom of Arizona State University.

8. “A rich lesson in exponential growth”, article from Curriculum Review, Dec.

1997, volume 37, Issue 4.

9. Wegener, Brend (1982). West Germany. “Social Attitudes and

Pyschophysical Measurement”. Published by Lawrence Erlbaum Associates.

Page 28: Polygon 2012

Polygon Spring 2012 22

Attachment 1

10 laws of exponents:

Page 29: Polygon 2012

Polygon Spring 2012 23

Attachment 2

Project of Windfall Scenario (from Curriculum Review, December 1997, Volume 37, issue 4)

Imagine you are 4 years old. A rich aunt wants to provide for your future with two options as financial aid: Options 1- she would give you $1000 per year until you reach age 21 (in 17

years). Option 2- she would give you $ 1 this year, $2 next year, $ 4 the third year, thus doubling the amount from previous year until you reach age 21. a. Which option is the best option you should choose? b. If you only received money for 10 years, which options would bring the most

money? c. How many years would you have the same amount of money with both

options? d. Why did the money in option 2 increase so rapidly after the 14th year?

Page 30: Polygon 2012

Polygon  Spring  2012  24    

   

Teaching  What  to  Think  vs.  Teaching  How  to  Think  in  College  

Jose  A.  Guntin  

ABSTRACT  

 

The  purpose  of  this  study  is  to  see  whether  or  not  helping  psychology  students  identify  content  

issues,  conclusions,  reasons,  and  ambiguity  using  the  SEEI  model  will  have  an  impact  on  

development  of  critical  thinking.    Although  research  indicates  that  significant  gains  in  critical  

thinking  are  both  perceived  and  experienced  by  college  students  (Tsui,  2002),  competence  in  

critical  thinking  is  lower  than  it  should  be  at  every  stage  in  schooling  (Norris,  1985).    Psychology  

students  enrolled  in  CLP1006  will  be  encouraged  to  utilize  the  SEEI  (State,  Elaborate,  Exemplify,  

and  Illustrate)  model  to  assist  them  in  identification  of  content  issues,  conclusions,  reasons,  and  

ambiguity  during  the  semester.    At  the  end  of  the  semester,  they  will  rate  their  own  level  of  

thought  in  a  self-­‐assessment  format  as  measured  by  Paul  and  Elder’s  (2009)  stages  of  critical  

thinking  development  (i.e.:    unreflective  thinker,  challenged  thinker,  beginning  thinker,  

practicing  thinker,  advanced  thinker,  and  accomplished  thinker).    As  a  result  of  the  intervention,  

it  is  expected  that  practice  at  identifying  content  issues,  conclusions,  reasons,  and  ambiguity  by  

using  the  SEEI  model  will  have  a  positive  effect  in  critical  thinking  development.  

Research  Question:  Will  helping  introduction  to  psychology  students  identify  content  issues,  

conclusions,  reasons,  and  ambiguity  by  using  the  SEEI  model  have  a  positive  effect  on  critical  thinking  

development  as  measured  by  a  self-­‐assessment?  

 

Page 31: Polygon 2012

Polygon  Spring  2012  25    

   

Literature  Review  

Critical  thinking  (CT)  is  considered  to  be  one  of  the  key  outcomes  related  to  obtaining  a  college  

education  (Ash,  Clayton,  and  Atkinson,  2005;  Renaud  and  Murray,  2007;  Schamber  and  Mahoney,  2006;  

Stupnisky,  Renaud,  Daniels,  Haynes,  and  Perry,  2008;  Tsui,  2002;  Solon,  2007).    Interest  in  CT  can  be  

explored  at  the  level  of  learning  institutions,  at  the  level  of  educators  and  at  the  level  of  the  students.    In  

2007,  the  National  Leadership  Council  for  Liberal  Education  and  America’s  Promise  (LEAP)  identified  

“essential  learning  outcomes”  that  will  help  students  become  successful  in  the  twenty-­‐first  century  

(Association  of  American  Colleges  and  Universities,  2007).    The  identified  essential  learning  outcomes  

were  subdivided  into  three  sections:  (1)  intellectual  and  practical  skills,  which  include  critical  and  

creative  thinking,  (2)  personal  and  social  responsibility,  and  (3)  integrative  learning,  which  includes  

synthesis  and  advanced  accomplishment  across  general  and  specialized  studies.    Also  in  2007,  in  a  

spearhead  initiative,  Miami  Dade  College  (MDC)  announced  the  Learning  Outcomes  Covenant  Signing  

Ceremony.    MDC  faculty  and  student  leaders  pledged  to  “the  development  of  knowledge,  skills  and  

attitudes  that  foster  effective  citizenship  and  lifelong  learning”.    MDC  included  critical  thinking  as  one  of  

the  10  learning  outcomes.  

Although  there  seems  to  be  a  level  of  interconnection  among  all  learning  outcomes,  intuition  suggests  

that  CT  could  be  considered  a  key  or  primary  learning  outcome  that  will  facilitate  attainment  of  the  rest  

of  the  learning  outcomes.    For  instance,  an  integrative  learning,  as  defined  by  LEAP,  presupposes  a  

measure  of  CT  as  it  includes  connecting,  synthesizing  and  transforming  in  its  rubric  (see  

http://www.aacu.org/value/rubrics/pdf/CreativeThinking.pdf  ).    Moreover,  informal  surveys  conducted  

in  campus  indicate  that  most  students  and  at  least  some  professors  agree  that  CT  could  be  considered  a  

key  or  basic  learning  outcome  in  the  sense  that  its  development  facilitates  attainment  of  other  learning  

outcomes.    In  contrast,  development  of  other  learning  outcomes  does  not  suggest  that  CT  will  

Page 32: Polygon 2012

Polygon  Spring  2012  26    

   

necessarily  improve.    In  a  similar  vein,  Carroll  (2000)  proposes  that,  regardless  of  intelligence  or  

knowledge,  people  in  general  will  make  unreasonable  decisions  and  arrive  to  unreasonable  beliefs  or  

take  unjustifiable  actions  when  they  do  not  engage  in  CT.      

Student  Performance  in  Critical  Thinking    

Students  agree  that  development  of  CT  is  desirable.    Tsui’s  (2002)  research  indicates  that  significant  

gains  in  CT  are  both  perceived  and  experienced  by  college  students.    However,  several  researchers  

conclude  that  CT  may  not  be  at  an  acceptable  level  when  students  leave  college.    For  instance,  Norris  

(1985)  concluded  that  competence  in  CT  is  lower  than  it  should  be  at  every  stage  of  schooling.    In  

addition,  Keeley,  Browne,  and  Kreutzer  (1982)  found  that  although  seniors  outperform  freshmen  at  

analyzing  articles,  they  show  “major  deficiencies”  in  their  performance.    Moreover,  Keeley  (1992)  found  

that  both  freshmen  and  seniors  show  “poor  performance”  at  basic  tasks,  such  as  identifying  

assumptions.    There  is  clearly  a  need  to  determine  effective  methods  to  assist  students  in  developing  CT  

skills,  but  it  is  equally  important  to  find  a  way  to  measure  student’s  progress  in  the  development  of  CT.      

Becoming  a  Critical  Thinker  

We  will  first  explore  methods  to  assist  students  and  we  will  later  address  the  issue  of  measuring  gains  in  

CT.    We  must  exercise  caution  when  choosing  a  method  to  assist  student  to  develop  CT  skills  as  some  

authors  present  concepts  related  to  CT  that  may  be  difficult  to  operationalize  and  measure.    Some  

authors  such  as  Ruscio  (2006)  focus  in  the  developing  CT  skills  by  exploring  areas  including  

reconceptualizing  issues  in  multiple  ways,  keeping  in  touch  with  reality,  formulating  multiple  working  

hypothesis,  and  danger  of  being  mislead  by  testimonials.    Some  of  those  techniques,  although  

informative,  may  prove  to  be  difficult  to  use  when  trying  to  measure  improvements  in  CT.    Fortunately,  

other  authors  offer  other  methods  that  employ  construct  that  are  less  ambiguous  and  therefore  easier  

to  measure.    For  instance,  Carroll  (2000)  suggests  focusing  on  identification  of  arguments  and  evaluation  

Page 33: Polygon 2012

Polygon  Spring  2012  27    

   

of  arguments  as  a  way  to  develop  CT  skills.    Similarly,  Smith  (2002)  offers  seven  guidelines  to  CT:  (1)  

critical  thinkers  are  flexible  –  they  can  tolerate  ambiguity,  (2)  critical  thinkers  identify  inherent  biases  

and  assumptions,  (3)  critical  thinkers  maintain  an  air  of  skepticism,  (4)  critical  thinkers  separate  facts  

from  opinions,  (5)  critical  thinkers  don’t  oversimplify,  (6)  critical  thinkers  use  logical  inference  process,  

and  (7)  critical  thinkers  examine  available  evidence  before  drawing  conclusions.    Finally,  Browne  and  

Keeley  (2007)  opt  to  explore  issues,  conclusions,  reasons,  ambiguity,  assumptions,  and  fallacies  in  the  

reasoning  in  their  guide  to  critical  thinking.      

As  we  can  see,  there  is  a  wealth  of  possibilities  from  which  to  choose  from  to  determine  a  method  or  

system  to  help  in  the  description  and  development  of  CT.    There  is  abundant  theoretical  and  

pedagogical  literature  on  CT  in  higher  education  but  relative  scarcity  of  published  empirical  work  on  the  

subject  to  guide  educators  in  planning  classes  to  facilitate  CT  (Solon,  2007).    In  fact,  Stupnisky,  Renaud,  

Daniels,  Haynes,  and  Perry  (2008)  literature  review  found  limited  research  on  student’s  CT  disposition.    

The  new  awareness  related  to  CT  seems  to  be  part  of  a  paradigm  shift  in  education.    Peters  (2007)  

suggests  that  although  CT  tends  to  be  treated  ahistorically  focusing  on  universal  processes  of  logic  and  

reasoning,  it  is  important  to  look  at  CT  in  the  context  present  day  and  age  and  considering  kinds  of  

thinking  and  styles  of  reasoning.    In  this  view,  distinct  kinds  of  thinking  operate  in  stages.    Thinking  skills  

can  be  considered  to  be  transferable  skills  that  provide  learners  with  the  means  by  which  they  can  learn.    

It  is  only  in  recent  years  that  knowledge  is  considered  to  be  a  skill  only  after  it  is  combined  with  real-­‐

world  experience.    This  emphasis  in  the  application  of  information  and  meta-­‐cognitive  skills  (i.e.:    

learning  how  to  learn)  is  what  separates  the  traditional  educational  system  from  the  new  educational  

system.    Learning  institutions,  as  well  as  educators,  are  no  longer  interested  in  producing  graduates  who  

think  in  ways  specific  to  their  major.    Learning  how  to  think  is  nowadays  more  important  than  learning  

what  to  think.    Fortunately,  teaching  students  skills  so  they  can  examine  their  own  learning  (i.e.:  critical  

questioning  and  inquiry  process)  does  not  lead  to  loss  of  content  (Osborne,  Kriese,  and  Tobey,  2008).  

Page 34: Polygon 2012

Polygon  Spring  2012  28    

   

Methods  and  Assessment  

If  the  new  interest  in  CT  is  a  paradigm  shift,  it  is  important  to  identify  basic  skills  to  guide  the  emerging  

critical  thinker,  the  path  that  allows  for  meta-­‐cognition  and  a  measure  to  evaluate  progress.      

Basic  skills  to  guide  the  emerging  critical  thinker:    In  order  to  find  how  to  assist  MDC  students  develop  

CT  skills,  I  had  several  discussions  with  some  colleagues  and  some  of  my  students.    The  consensus  seems  

to  be  that  students  could  benefit  from  practicing  a  “simple  CT  system.”    Following  that  advice,  I  propose  

a  system  based  on  Browne  and  Keeley  (2007)  and  consisting  on  helping  students  in  the  identification  of  

content  issues,  reasons,  conclusions,  and  ambiguity.    The  system  is  combined  with  the  seven  guidelines  

to  CT  (Smith,  2002)  and  weekly  instructional  strategies  to  allow  student  to  practice  and  gain  

progressively  higher  levels  of  mastery  in  CT.    I  discussed  the  idea  of  utilizing  an  instructional  strategy  to  

assist  students  in  the  assimilation  of  the  simple  CT  system  with  colleagues  attending  the  Scholarship  of  

Teaching  and  Learning  (SOTL)  (2011)  and  with  Enoch  Hale,  presenter  at  the  SOTL  seminar.    They  agreed  

that  the  State,  Elaborate,  Exemplify,  and  Illustrate  (SEEI)  model  presented  during  the  seminar  by  Hale  

would  be  the  best  instructional  strategy  for  the  purpose  at  hand.    A  similar  training  method  was  used  by  

Bensley,  Crowe,  Bernhardt.  Buckner,  and  Allman  (2010)  with  encouraging  results.    They  found  that  the  

group  receiving  explicit  CT  skills  instruction  showed  significantly  greater  gains  in  their  argument  analysis  

skills  than  the  groups  receiving  no  explicit  CT  instruction.    

Path  towards  CT:    It  is  clear  that  the  literature  offers  multiple  paths  towards  CT.    I  choose  Paul  and  Elder  

(2009)  hierarchical  organization  of  CT  development  on  the  basis  of  simplicity  of  their  model  and  clarity  

of  their  definitions.    They  present  six  stages  in  CT  development  (i.e.:    unreflective  thinker,  challenged  

thinker,  beginning  thinker,  practicing  thinker,  advanced  thinker,  and  accomplished  thinker).  

Page 35: Polygon 2012

Polygon  Spring  2012  29    

   

Measure  of  CT:    We  must  exercise  all  possible  caution  to  avoid  teaching  to  the  test.    Authentic  

assessments  whereby  students  are  asked  to  show  their  knowledge  and  skills  by  performing  real-­‐world  

tasks  are  necessary  if  we  aim  to  develop  skills  that  students  can  generalize  to  their  life  outside  the  

College.    In  an  attempt  to  reduce  the  transmission  of  fragmented  knowledge  in  the  classroom,  Clark  

(2010)  utilized  experiential  essays  as  a  means  to  connect  content  information  with  student’s  thoughts  

and  experiences.    He  reports  that  his  students  were  able  to  use  course  concepts  and  focus  on  reporting  

applied  understanding  (i.e.:    application  of  concepts  to  understand  specific  life  events  or  experiences)  

and  transformed  understanding  (i.e.:    understanding  of  a  topic,  such  as  abnormality  or  intelligence,  with  

impact  beyond  the  course)  as  tools  for  better  understand  events  and  experiences  in  their  lives  beyond  

the  classroom.      A  self-­‐assessment  measure  was  chosen  as  it  will  allow  students  to  reflect  on  their  own  

level  of  critical  thinking.    

Participants  and  Procedure  

Approximately  90  to  100  students  registered  to  two  introductory  educational  psychology  courses  will  

participate  in  the  study.    One  of  the  classes  will  act  as  control  group;  the  other  as  experimental  group.    

The  classes  will  run  from  August  to  December.  Although  students  will  not  be  randomly  assigned,  it  is  

reasonable  to  expect  that  the  students  will  constitute  a  representative  sample  of  students  attending  

MDC’s  Kendall  Campus.    The  course  syllabus  will  indicate  that  data  will  be  obtained  during  the  course  to  

enhance  teaching  effectiveness.    Enrollment  in  this  course  typically  consists  of  students  who  are  19-­‐26  

years  old,  approximately  68%  Hispanic,  60%  female,  and  52%  first  generation  in  college.    Participation  in  

the  study  will  not  compromise  course  objectives  or  interfere  with  any  aspect  of  the  course.  

All  students  will  obtain  a  rubric  containing  information  about  the  Stages  of  Critical  Thinking  

Development  as  presented  by  Paul  and  Elder  (2009)  and  will  complete  a  three  to  four  page  pre-­‐self-­‐

assessment  rating  their  level  of  critical  thinking.    Students  in  the  experimental  group  will  be  introduced  

Page 36: Polygon 2012

Polygon  Spring  2012  30    

   

to  the  “simple  CT  system”  adapted  from  Browne  and  Keeley  (2007).    The  students  will  utilize  the  

SEEI  model  at  least  once  per  week  to  gain  practice  in  the  identification  and  analysis  of  content  

issues,  conclusions,  reasons,  and  ambiguity.    At  the  end  of  the  semester,  all  students  will  

complete  a  three  to  four  page  post-­‐self-­‐assessment  rating  their  level  of  critical  thinking  and  students  in  

the  experimental  group  will  participate  in  a  focus  group.      

Significant  Results      

An  independent  rater  will  read  all  self-­‐assessments.    When  pre-­‐self-­‐assessments  are  compared  

with  post-­‐self-­‐assessments,  the  following  results  are  expected.    First,  students  in  the  

experimental  group  will  report  an  increase  in  level  of  CT  in  their  post-­‐self-­‐assessment  as  

compared  with  pre-­‐self-­‐assessment.    Second,  students  in  the  experimental  group  will  report  a  

higher  level  of  CT  than  students  in  the  control  group.    Third,  the  reasoning  presented  by  

students  in  the  experimental  group  in  the  post-­‐self-­‐assessment  will  show  clarity  and  ability  to  

keep  the  reasons  and  conclusions  straight,  while  students  in  the  control  group  may  use  reasons  

that  do  not  support  their  own  conclusions.    No  significant  correlation  is  expected  between  level  

of  CT  and  final  grades.    The  focus  group  will  lead  invaluable  information  that  could  be  useful  for  

future  research.        

Applicability  to  STEM  

Although  the  SEEI  model  has  merit,  it  is  not  STEM  specific  and  it  is  not  sensitive  to  the  needs  of  

STEM  students.    STEM  students  have  to  successfully  overcome  a  series  of  difficulties  that  have  

to  be  taken  in  consideration  when  one  of  the  learning  goals  is  enhancing  CT  in  STEM.    Basic  

issues  to  consider  are  the  following:  (1)  students  may  not  understand  the  task  at  hand;  (2)  they  

Page 37: Polygon 2012

Polygon  Spring  2012  31    

   

may  have  difficulty  with  scientific  language;  (3)  they  may  solve  problems  in  a  mechanistic  

manner  without  considering  alternative  procedures  that  may  prove  more  effective;  and  (4)  they  

may  not  be  able  to  transfer  learned  skills  to  alternative  applications.      

With  this  in  mind,  the  STEM2  model  (State  the  problem/issue,  Translate  to  scientific  language,  

Execute,  Market/explain  what  you  did  and  why  did  you  use  a  particular  technique,  Make  it  

applicable/extensive)  was  created  to  address  needs  specific  to  STEM  students.    This  moded  

provides  the  student  with  a  solid  structure  on  which  scientific  knowledge  can  be  learned  while  

employing  CT  skills.    The  model  allows  the  student  to  tackle  new  information  systematically  and  

addresses  the  four  basic  issues  indicated  above.      

STEM2  model  consists  of  five  steps.    Each  one  of  the  steps  acts  as  a  building  block  to  facilitate  

comprehension  and  promote  critical  thinking  and  scientific  reasoning.    During  the  first  step,  

State  the  problem  or  issue,  the  student  is  encouraged  to  State  the  problem  or  issue  in  his/her  

own  words.    This  step  will  (1)  prevent  students  from  learning  definitions  without  truly  

understanding  important  concepts,  (2)  assure  that  the  student  understands  the  issue  presented  

in  the  classroom,  and  (3)  promote  curiosity  as  the  student  comes  up  with  questions  that  need  

to  be  explained  and  challenges  that  need  to  be  resolved  scientifically.    During  the  second  step,  

Translate  to  scientific  language,  the  student  converts  initial  impressions  into  precise  scientific  

language  that  facilitate  communication  and  learning  of  scientific  principles.    During  the  third  

step,  Execute,  the  student  provides  a  solution  to  the  task  at  hand.    During  the  fourth  step,  

Market,  the  student  explains  why  a  specific  formula  was  utilized  and  shares  about  possible  

implications  stemming  from  the  derived  solution.    During  the  fifth  step,  Make  it  

Page 38: Polygon 2012

Polygon  Spring  2012  32    

   

applicable/extensive,  the  student  identifies  (1)  similar  issues  or  problems  that  can  be  resolved  

with  line  of  thinking  presented  and  (2)  nuances  when  the  derived  solution  would  be  

inadequate,  (3)  nuances  when  the  chosen  technique  or  formula  to  derive  a  solution  would  be  

inadequate.      

 

 

 

 

 

Page 39: Polygon 2012

Polygon  Spring  2012  33    

   

References

Ash, S. L., Clayton, P. H., and Atkinson, M. P. (2005). Integrating reflection and assessment to

capture and improve student learning. Michigan Journal of Community Service Learning

Spring 49-60.

Bensley, D. Alan; Crowe, Deborah S.; Bernhardt, Paul; Buckner, Camille; Allman, Amanda L.

(2010). Teaching and Assessing Critical Thinking Skills for Argument Analysis in

Psychology. Teaching of Psychology, v37 n2 p91-96 2010. 6 pp.

Browne, M. N., Keeley, S. M. (2007). Asking the Right Questions A Guide to Critical Thinking

Eighth Ed. (New Jersey, Pearson Prentice Hall).

Carroll, R. T. (2000). Becoming a Critical Thinker A Guide for the New Millennium. (Boston,

Pearson Custom Publishing).

Clark, Kevin M. (2010). Applied and Transformed Understanding in Introductory Psychology:

Analysis of a Final Essay Assignment. Journal of the Scholarship of Teaching and

Learning, v10 n3 p41-57 Nov 2010. 17 pp.

Keeley, S. M. (1992). Are college students learning the critical thinking skill of finding

assumptions? College Student Journal, 26, 316-322.

Keeley, S. M.. Browne, M. N., & Kreutzer, J. S. (1982). A compariron of freshmen and seniors

on general and specific essay tests of critical thinking. Research in Hgher Education,

17, 139-154.

Page 40: Polygon 2012

Polygon  Spring  2012  34    

   

Norris, S.P. (1985). Synthesis of research on critical thinking. Educationnal Leadership, 42(8),

40-45.

Osborne, Randall E., Kriese, Paul, Tobey, Heather (2008). Reflections on a Decade of Using

the Scholarship of Teaching and Learning. InSight: A Journal of Scholarly Teaching, v3

p37-46 2008. 10 pp.

Paul, Richards, Elder, Linda (2009). The miniature Guide to Critical Thinking Concepts and

Tools (The Foundation for Critical Thinking).

Peters, Michael A. (2007). Kinds of Thinking, Styles of Reasoning. Educational Philosophy and

Theory, v39 n4 p350-363 Aug 2007. 14 pp.

Renaud, R. D., Murray, H. G. (2007). The validity of higher-order questons as a process

indicator of educational quality. Research in Higher Education 48(3): 319-351.

Ruscio, John (2006). Critical Thinking in Psychology (Wadsworth).

Schamber, J. F., Mahoney, S. L. (2006). Assessing and improving the quality of group critical

thinking exhibited in the final projects of collaborative learning groups. Journal of

General Education 55(2): 103-137.

Smith, Randolph A. (2002). Changing Your Preconceptions Thinking Critically about

Psychology (Wadsworth).

Solon, T. (2007). Generic critical thinking infusion and course content learning in introductory

psychology. Journal of Instructional Psychology 34(2): 95-109.

Page 41: Polygon 2012

Polygon  Spring  2012  35    

   

Stupnisky, R. H., Renaud, R. D., Daniels, L. M., Haynes, T. L., Perry, R. P. (2008). The

interrelation of first-year college students’ critical thinking disposition, perceived

academic control, and academic achievement. Research in Higher Education 49: 513-

530.

Tsui, L.(2002). Fostering critical thinking through effective pedagogy: evidence from four

institutional case studies. Journal of Higher Education 73(6): 740-763.

 

Page 42: Polygon 2012

Polygon  Spring  2012  

 

36  

                       

Towards  Development  of  Critical  Thinking  in  College  

Jose  A.  Guntin  

ABSTRACT

Studies indicate that critical thinking improves as a result of attending college. Miami Dade

College’s pioneer work includes critical thinking as one of the learning outcomes. Clearly, there

is a higher value in teaching students how to think rather than what to think. Perry’s model of

intellectual and ethical development suggests that college students will benefit from moving in a

progression of increasingly higher less restrictive levels of thinking (i.e.: dualism, multiplicity,

relativism, commitment in relativism) utilizing improved critical thinking skills. At higher levels

the student’s level of functioning becomes improved. However, while the development of critical

thinking skills is a fundamental objective of the general education of college students, it is not

clear what specific elements contribute to the development of critical thinking. A literature

review indicates that there may be three performance indicators to evaluate critical thinking: (1)

higher-order questions (Renaud and Murray, 2007), (2) deep reflection (Moon, 2009), and

addressing spirituality and the “big questions” (Walvoord, 2008).

In this study, introductory psychology students’ critical thinking skills will be measured in a

pretest and posttest (i.e. a presentation) utilizing the rubric developed by MDC. The students

are expected to show gains in the posttest after being exposed to higher-order questions, deep

reflection, and spirituality questions including relating information presented in class to meaning

of life.

Page 43: Polygon 2012

Polygon  Spring  2012  

 

37  

 

Review of the Literature

The development of critical thinking is considered to be an essential component of the general

education of college students (Ash, Clayton, and Atkinson, 2005; Renaud and Murray, 2007;

Schamber and Mahoney, 2006; Stupnisky, Renaud, Daniels, Haynes, and Perry, 2008; Tsui,

2002; Solon, 2007). At the level of higher learning institutions, Miami Dade College (MDC) in a

spearhead initiative included critical thinking as one of the 10 learning outcomes as a result of

obtaining a college education. However, it is surprising that research on student’s critical

thinking dispositions is so limited (Stupnisky, Renaud, Daniels, Haynes, and Perry, 2008). Little

is found in terms of actual approaches to promote critical thinking in classrooms that have gone

through research scrutiny. For instance, Solon’s (2007) literature review found abundant

theoretical and pedagogical literature on critical thinking in higher education, but relative scarcity

of published empirical work on the subject to be able to guide educators in planning their

classes to facilitate the development of critical thinking.

One of the reasons research in critical thinking is scarce could be that increase in critical

thinking skills may not necessarily be related to significant improvement in overall test scores.

Perceived academic control, for instance, was found to have a stronger impact on student’s

GPA than critical thinking disposition (Stupnisky, Renaud, Daniels, Haynes, and Perry, 2008).

Even though there is indication that critical thinking may not lead to an increase in GPA, Tsui’s

(2002)research states that significant gains in critical thinking are both perceived and

experienced by college students. The question is whether or not these desired gains are at

favorable levels. Several researchers conclude that critical thinking may not be at an acceptable

level when students leave college. Even more distressing is Norris’ (1985) conclusion that

competence in critical thinking is lower than it should be at every stage of schooling. Also,

Page 44: Polygon 2012

Polygon  Spring  2012  

 

38  

Keeley, Browne, and Kreutzer (1982) found that although seniors outperform freshmen at

analyzing articles, they show “major deficiencies” in their performance. Moreover, Keeley

(1992) found that both freshmen and seniors show “poor performance” at identifying

assumptions.

If seems clear that students could benefit from a curriculum that emphasizes the importance of

improving critical thinking as learning institutions, educators, and students are in agreement that

improvements in critical thinking is desirable. A possible answer to the problem would be to

offer students specific courses to improve critical thinking skills. In fact, there is no scientific

basis to support the notion that one particular course, other than a critical thinking type of

course, can make any positive measurable difference to increase critical thinking (Solon, 2007).

The above alternative may not be highly effective as some students will be unable to generalize

the learned skills outside the classroom. A second alternative would be to promote faculty

initiatives to enhance critical thinking. Here some may be concerned that making emphasis on

critical thinking may compromise course content learning. But there is evidence to suggest that

this is not the case. For example, no significant differences in psychology learning were found

as reflected by test scores between a group of students who have been exposed to a “moderate

infusion of generic critical thinking material” and a control group (Solon, 2007).

In an attempt to improve critical thinking without compromising course content learning, three

methods were found in the literature: frequency of higher-order questions, working with diverse

groups, and reflection.

Frequency of Higher-Order Questions

Renaud and Murray (2007) found that frequency of higher-order questions is related to student’s

critical thinking skills. They presented three studies in their research. One compared the

amount with higher-order questions on tests and assignments in actual classes to pre-test-post-

Page 45: Polygon 2012

Polygon  Spring  2012  

 

39  

test gains in critical thinking. a second experimental study compared groups of students given

lower- vs. higher –order questions in actual classes. The third was a true experiment done in a

laboratory that related level of review questions to pre-test-post-test gains while controlling for

possible confounding variables. Overall, they found that students are more likely to improve

their critical thinking skills when they have answered higher-order questions in their coursework.

Also in relation to the kind of questions asked, Walvoord (2008) explored the possibility of using

spirituality and the “big questions” to promote critical thinking. He gathered survey data from

533 classes and more qualitative data from 66 classes whose teachers had been recommended

by their department chairs as “highly effective” and found that it is possible to manage issues,

such as spirituality by giving students tools to deal with life’s questions.

Working in Diverse Groups and Reflection

Laird (2005) found that students with positive interactions with diverse peers are more likely

score higher in critical thinking disposition. Interestingly, he also found that experience with

diverse groups leads to gains in self-confidence in one’s academic and intellectual abilities.

Self-confidence may be a component in perceived academic control which was found by

Stupnisky, Renaud, Daniels, Haynes, and Perry (2008) to have a greater effect on GPA than

critical thinking disposition. Thus, working with diverse peers becomes a desirable aspect to be

studied in combination with critical thinking to see if it leads to significant effects on exam

scores. In addition, Schamber and Mahoney (2006) assessed critical thinking in collaborative

learning groups through authentic assessment using two interventions: revision in writing and a

critical thinking rubric and found gains in student’s group critical thinking skills. Moreover, Moon

(2009) suggests that the graduated scenario method could be used to improve critical thinking.

Briefly, the technique was developed to facilitate reflective learning. It consists on developing

alternatives of the same account; each alternative scenario represents a distinct level of depth

of reflection. The accounts are made available to the group whose task is to identify the strands

Page 46: Polygon 2012

Polygon  Spring  2012  

 

40  

that change between the accounts and make one more deeply reflective than the first. Perry’s

(1999) developmental scheme (i.e.: dualism, multiplicity, relativism, and commitment) could be

adopted to devise alternative accounts to be used in the graduated scenario method. Reflection

has been found to be a key component in student’s learning (Ash, Clayton, and Atkinson, 2005).

Reflective writing results in better quality learning (Moon, 2009). Reflection can be adopted to

promote development in critical thinking.

Summary

Although critical thinking is both a desired and expected outcome of college education for

learning institutions, educators, and students, some researches found that competence in

critical thinking is lower than it should beat every stage of schooling (Keeley, 1992; Keeley,

Brown, and Kreutzer, 1982; Norris, 1985). The pedagogical literature about critical thinking may

be rich but literature about empirical work is needed. Although some researches, such as

Stupnisky, Renaud, Daniels, Haynes, and Perry (2008) promote that perceived academic

control has a stronger impact on students’ GPA than critical thinking disposition, it is my view

that it is likely that more can be done to promote adequate gains in critical thinking. Once

adequate levels of critical thinking disposition are obtained, improvements in elaborative

learning resulting from (1) make use of of higher-order questions and (2) moving from dualistic

absolutism towards generalized relativism and commitment (Perry, 1999) has to be expected

with both gains in GPA and perceived academic control. Since research to address the above

issues would be too much of an undertaking, the proposed study will be focused on promoting

critical thinking and comparing grades undergoing treatment with other students taking the

same class with the same course.

Methods and Assessment

Page 47: Polygon 2012

Polygon  Spring  2012  

 

41  

The purpose of this study is to explore increase in critical thinking skills for a group of students

taking an introduction to psychology class by means of pre-test-post-test. Students will be

divided into collaborative learning groups accounting for diversity. Each group will conduct two

presentations. The first presentation will take place during the second week of the course and

the last second presentation will take place one week before final examinations. Two rubrics

will be utilized by independent raters as pre-test-post-test. The MDC rubric will be compared

with a rubric developed based on Perry’s cognitive development model (1999). MDC rubric

yields four levels of competency (emerging, developing, proficient, exemplary) created by

faculty to assess critical thinking, while Perry’s model describes the steps that move students

from simplistic categorical view of knowledge to a more complex view (i.e.: dualism, multiplicity,

relativism, commitment) based on sound theory. While MDC rubric allows for both qualitative

and quantitative data collection, the rubric based on Perry’s model allows for qualitative data

collection and an explanation based on a theoretical model.

Participants and Procedure

A total of approximately 45 to 50 students registered to an introductory educational psychology

course. The classes will run from August to December. Although students will not be randomly

assigned, it is reasonable to expect that the students will constitute a representative sample of

students attending MDC’s Kendall Campus. Enrollment in this course typically consists of

students who are 19-26 years old, approximately 68% Hispanic, 60% female, and 52% first

generation in college. Participation in the study will not interfere with any aspect of the course

and course objectives will not be compromised. Students will be tested in groups ranging in

size from 5 to 7. Before the experiment begins, each participant will sign a consent form.

Performance in group presentation will be measured before and after treatment. The treatment

will consist on (1) having students work in collaborative learning groups to find answers to

higher-order questions about information presented in class, (2) application of Moon’s graduate

Page 48: Polygon 2012

Polygon  Spring  2012  

 

42  

scenario technique (2009) by having the groups of students discuss and evaluate four

alternative accounts varying in depth of critical thinking and cognitive development as

suggested by Perry, and (3) having students write four reflection papers in response to higher-

order questions.

Significant Results

It is expected that comparison of means obtained in pre-test-post-test by utilizing the MDC

rubric will yield significant results suggesting that the treatment was successful in bringing gains

in critical thinking. Also, it is expected that students will show improvement in their cognitive

development and will be able to process information moving away from simple dualism into

multiplicity and relativism. The implication of having significant results would be that introduction

to psychology courses can be design to promote cognitive development and increase critical

thinking for students. Also, it would be interesting to know if any relationship exists between

MDC’s critical thinking rubric and Perry’s model. Finally, final grades of students participating in

this study could be compared to final grades obtained by students who did not participate in this

study but took the same course. If significant results would be obtained, a higher scale study

could be developed comparing test scores of students who are subject to (1) collaborative

learning using higher-order questions, (2) application of the graduate scenario method, and (3)

reflection with students taking the same tests but attending traditional courses.

Page 49: Polygon 2012

Polygon  Spring  2012  

 

43  

References

Ash, S. L., Clayton, P. H., and Atkinson, M. P. (2005). Integrating reflection and assessment to

capture and improve student learning. Michigan Journal of Community Service

Learning Spring 49-60.

Hittner, J. B. (1999). Fostering critical thinking in personality: the trait paper assignment. Journal

of Instructional Psychology 26(2): 92-97.

Holliway, D. (2009). Towards a sense-making pedagogy: writing activities in an undergraduate

learning theories course. International Journal of Teaching and Learning in Higher

Education 20(3): 447-461.

Keeley, S. M. (1992). Are college students learning the critical thinking skill of finding

assumptions? College Student Journal, 26, 316-322.

Keeley, S. M.. Browne, M. N., & Kreutzer, J. S. (1982). A compariron of freshmen and seniors

on general and specific essay tests of critical thinking. Research in Hgher Education,

17, 139-154.

Moon, J. (2009). The use of graduate scenarios to facilitate the learning of complex and difficult-

to-describe concepts. Art, Design & Communication in Higher Education 8(1) 57-70.

Nelson Laird, T. F. (2005). College students’ experiences with diversity and their effects on

Page 50: Polygon 2012

Polygon  Spring  2012  

 

44  

academic self-confidence, social agency, and disposition towards critical thinking.

Research in Higher Education 46(4): 365-387.

Norris, S.P. (1985). Synthesis of research on critical thinking. Educationnal Leadership, 42(8),

40-45.

Renaud, R. D., Murray, H. G. (2007). The validity of higher-order questons as a process

indicator of educational quality. Research in Higher Education 48(3): 319-351.

Schamber, J. F., Mahoney, S. L. (2006). Assessing and improving the quality of group critical

thinking exhibited in the final projects of collaborative learning groups. Journal of

General Education 55(2): 103-137.

Solon, T. (2007). Generic critical thinking infusion and course content learning in introductory

psychology. Journal of Instructional Psychology 34(2): 95-109.

Stupnisky, R. H., Renaud, R. D., Daniels, L. M., Haynes, T. L., Perry, R. P. (2008). The

interrelation of first-year college students’ critical thinking disposition, perceived

academic control, and academic achievement. Research in Higher Education 49: 513-

530.

Tsui, L.(2002). Fostering critical thinking through effective pedagogy: evidence from four

institutional case studies. Journal of Higher Education 73(6): 740-763.

Walvoord, B. E. (2008). How to help students confront life’s “big questions”? Chonicle of Higher

Education 54(49).

Page 51: Polygon 2012

Factorial Experiment Design to Analyze Fuel Consumption of a Vehicle

Eng. Int. Joaquin A. Bestard

Adjunct Professor

Department of Mathematics

Liberal Arts and Sciences

Miami Dade College, Hialeah Campus

Hialeah, Florida 33012

E-mail: [email protected]

ABSTRACT

The focus of this experiment is to discover which factors affect the gas mileage of a

vehicle by adjusting three driving settings. The experiment is performed on a 2009 Honda

Civic, but the targeted population is vehicles of any make and model since the results can

be extended to all car models since all vehicles use the same basic functioning principles.

It is hoped that the presented study can be useful to the applied researchers in various

fields.

1. INTRODUCTION

With increasing gas prices and the lack of alternate fuels the mileage per gallon of a

vehicle has become a concern to many drivers and consumers. The focus of this

experiment is to discover which factors affect the gas mileage of a vehicle by adjusting

three driving settings. The experiment will be performed on a 2009 Honda Civic, but the

targeted population is vehicles of any make and model since the results can be extended

to all car models since all vehicles use the same basic functioning principles. The

experiment tests three driving settings. The car’s A/C temperature and tire pressure are

two settings which can be readily adjusted by the driver at any moment before driving.

The tire pressure cannot be controlled during the trip, but it will stay steady for a short

trip. The third setting cannot be controlled at the flip of a switch like the A/C, but one can

avoid high traffic zones knowing during what time intervals they occur, of course it is not

always possible to drive through the ideal light traffic zone. Heavy traffic is avoidable to

an extent, but it could be very random and also during a trip there are parts in which the

traffic is heavy and parts in which it is light that is why this setting is left to the discretion

Page 52: Polygon 2012

of the driver. The driver during the experiment considered it heavy traffic when it took

more than 30 minutes to drive through a 10 mile zone, which is equivalent to driving at

an average of 20 mph. During the series of tests, the A/C level, tire pressure and traffic

pattern each had two adjustable settings. The different combinations of these settings

were replicated three times to assure a high volume of data instead of single observations

which would have led to only eight observations of mileage per gallon. The goal of these

observations is to increase the miles per gallon consumption ratio of the car.

From the analysis of the experiment it was concluded that the highest mileage per gallon

could be obtained and replicated by lowering the A/C level, keeping the tire pressure at

32 psi (recommended by Honda), and by driving during low traffic hours.

2. PROBLEM STATEMENT

Increasing gas prices and the lack of alternate fuels have made the mileage per gallon of a

vehicle a primary concern to many consumers. The goal of this experiment is to

determine which factors affect the amount of miles a vehicle travels per gallon by

adjusting different driving settings.

3. EXPERIMENT DESIGN

Description of Design Factors and Response Variable:

1) Traffic Pattern is a random experimental variable. Traffic cannot be controlled but if

a route is observed there usually two patterns. Heavy traffic patterns are usually during

rush hour traffic, it takes a lot of breaking and accelerating to get from point A to point

B. Light traffic patterns usually happen late at night or early in the morning of

weekend days, characterized by smooth driving at constant velocity.

The time of the day a route is used matters because traffic patterns change according to

time of day. For this experiment the driver will be held fixed to eliminate the variation

due to the driver’s manner of driving and the route used will be held constant. The

route is a 10 mile-long section of the Palmetto Expressway from 8th

Street to 103rd

St.

We will be doing test runs during Monday through Friday on regular work days. The

schedule for a heavy traffic pattern will be any time from 7:30 AM to 10:30 AM or

3:00 PM to 5:00 PM, for a light traffic pattern 8:00 PM to 11:00 PM. We will be

checking the effect of light and heavy traffic on the gas mileage by driving from the

Chevron Gas Station (located at 950 Southwest 87th Avenue, Miami, FL 33174) to a

BP Lakeside Station (located at 8314 Northwest 103rd Street, Hialeah, FL 33016)

Page 53: Polygon 2012

2) Air conditioning is a controllable experimental variable. The air conditioning system

of a 2009 Honda Civic contains two knobs one to control temperature. The other to

control the intensity of the A/C. The intensity knob (located to the left) will be held

constant at its maximum level while the temperature knob (located on the right) will

be changed to two different temperatures very cold (High) and regular (Low). The high

setting of the knob is located at the point when the temperature knob cannot be turned

anymore in the counter-clockwise direction and the low when the pointer of the knob

points to the narrowest of the blue marks.

3) Tire pressure will also be random experimental variable since one can measure tire

pressure, but due to friction the temperature of the tires increases and tire pressure

increases along with it. The tire pressure will be measured when the tires have been

sitting for more than 3 hours and we will test the effect of tire pressure on the gas

consumption at two different levels 28 psi and 32 psi.

Other factors that affect fuel consumption are acceleration, braking, traffic and

weather conditions. These factors cannot be controlled easily therefore they will be

accounted for by the error term of our model. Weather is impossible to control

therefore we will take this variable as part of the error. The driver of the vehicle and

vehicle brand may affect mileage per gallon but to make this experiment practical they

will be will be held fixed. Route determines road condition and this factor will be held

fixed as well as the distance traveled.

The response variable is the mileage per gallon of the vehicle. Miles per gallons will

be the dependent variable of the experiment. This variable will be calculated by

dividing the distance traveled by the gallons consumed.

Data Collection Procedure:

To collect data the plan is to use the same route for all the experimental trials in order to

reduce variation due to route. Trials will be held during different random weekdays and

the time of the day will be chosen randomly between the times of day mentioned in the

Traffic Pattern variable. In order to measure the amount of fuel consumed, the

following steps will be taken:

1) Fill the fuel tank of the car to the maximum on a gas station located at the beginning

of the route.

2) Take note of the initial mileage of the car.

3) Drive through the route until the other gas station located at the end of the route is

reached.

Page 54: Polygon 2012

4) Take note of the final mileage of the car.

5) Fill the tank and make a note of the gallons that were pumped into the tank.

6) This process will be repeated while varying A/C, tire pressure settings, and the

traffic density. These settings will be adjusted according to the type of test run.

Experiment Design and Analysis of Data:

Since all of the factors were tested at two levels, the 23 Factorial Design (Design and

Analysis of Experiments 7th

Edition; Douglas Montgomery; Section 6.3; pg. 215) will be

used to analyze the results gathered. During the experiment the replicates will be blocked

on. Table 1 shows the summary of raw data and Table 2 shows the codes assigned to the

factors in order to perform the experiment.

Three replicates of each treatment were measured for a total of 24 test runs. The data was

analyzed using an ANOVA table that compares the main effect of each factor as well as

the two-factor and three factor interactions.

Table 1: 23 Factorial Design Table

A/C

Level

Traffic

Pattern

Tire Pressure

(psi) Miles per Gallon

A B C Replicate I Replicate II Replicate III

Low Light 28 18.11 21.30 20.81

Low Light 32 29.93 29.23 29.24

Low Heavy 28 17.92 18.36 20.56

Low Heavy 32 23.98 25.00 24.51

High Light 28 19.43 20.05 20.34

High Light 32 27.94 26.90 27.71

High Heavy 28 13.92 14.26 12.96

High Heavy 32 16.94 20.18 18.70

Table 2: Factor Code table

Factor (i) xi = -1 xi = +1

A/C Level (A) Low High

Traffic Pattern (B) Light Heavy

Tire Pressure (C) 28 psi 32 psi

4. EXPERIMENT ANALYSIS

ANOVA Results:

The null and alternate hypothesis being tested by in the ANOVA is:

H0: β0 = βA = βB = βC = βAB = βAC = βBC = βABC = 0

Page 55: Polygon 2012

None of the factors or interactions have a significant effect on the response variable.

H0: βi ≠ 0

At least one main effect/interaction have a significant effect on the response variable.

According to the ANOVA results (page 7) generated by Minitab 16, Air conditioning

level (Factor A), Traffic Pattern (Factor B), and Tire Pressure (Factor C) all have a

significant effect on the Mileage per Gallon (MPG) of the vehicle. Air conditioning and

traffic pattern interact to cause a significant effect on the mileage per gallons, and so do

the traffic pattern and tire pressure.

Residual Analysis:

The residual plot in Figure 1 (page 9) shows no pattern. In addition, the residuals are

distributed equally above and below the y = 0 line. This suggests that the model

generated by the 23 Factorial Design Experiment is unbiased and the predictions

generated by the model do not tend to underestimate or overestimate the actual data

values. Figure 2 shows that if the data values are organized by replication number and by

factor combination it is very random.

The normal plot for the 23 Factorial Design on Figure 3 shows that the data is normally

distributed, because all of the points on the plot follow a linear pattern. Those points that

do not fall on the line can pass the normality test using the fat pencil test for normality. In

Figure 4 the results of the Kolmogorov-Smirnov test for normality appear on the label,

KS = 0.149 and the corresponding p-value is 0.150 which is greater than the significance

level of 0.05 and this corroborates the fat pencil test results by saying that the data is

indeed normally distributed. The normal plot of standardized effects in Figure 5 supports

the ANOVA results by showing how the main effects of A, B, and C and the interactions

AB and BC are have a significant standardized effect and fall far from the normal line.

This figure also shows the sign of the effect coefficients; if the points lie on the left the

effects will have a negative effect coefficient on the regression model, while the points on

the right will have a positive effect coefficient.

Regression Model, Contour Plots and Surface Plots Analysis:

The significant regression model coefficients obtained from Minitab (page 7) are listed

on the following table and the equation of the model is shown below the table.

β0 21.595

βA -1.651

βB -2.653

βC 3.426

βAC -1.130

Page 56: Polygon 2012

βBC -0.817

The regression model has an R2 value of 97.61% and Radj

2 of 96.07% which assures us

that the regression model closely resembles the actual data.

The contour plots of this experiment are all shown in Figures 6 through 11 (starting in

page 10). In order to optimize the gas economy of the vehicle, we are interested in the

dark green regions on these contour plots which represent a predicted mileage per gallon

above 28 mpg. Contour plots in Figures 7, 8, 10, and 11 all show the dark green region of

interest. Three of the contour regions in the analysis show that a favorable combination to

increase the gas mileage is low setting of factor A and B and the high setting of C, which

means driving the vehicle with the A/C at a low level at a low traffic zones and with 32

psi tire pressure (which is suggested in the manual of the vehicle). Figure 11 shows that

the low level of factor B and high level of A and C will create a desirable effect, but this

is questionable because only one contour plot shows this effect and if we compare the

same observations to the other graphs the color is actually a lighter shade of green which

corresponds to a lower level of gas mileage. Response Surface Graphs are the 3D models

of the contour plots and they show the same results analyzed in the contour plots.

5. CONCLUSION

Using the regression model generated by the 23 Factorial Design:

The study suggests that the best factor combination to increase the number of miles per

gallon of a 2009 Honda Civic is low A/C, light traffic zones, and to use the suggested 32

psi tire pressure setting suggested by the car’s manufacturer.

This experiment can be extended to other vehicle make and models and further tests

concentrating in more factors can be performed to obtain more accurate results. During

this experiment many source of error existed due to the lack of measuring equipment and

software. It is suggested to lessen variation to keep the gasoline supplier constant; this

source of variability was ignored for the simplicity of this experiment. Another

improvement to the design of the experiment is to use tools to measure tire pressure

variations during the experiment, in this experiment the equipment to instantaneously

Page 57: Polygon 2012

measure this variable factor was not present. If tire pressure increases with the increase in

temperature due to friction, then the gas mileage shown in the results is improved due to

friction encountered by the road conditions.

ACKNOWLEDGEMENT

The author would like to thank his professor, Dr. Sneh Gulati, Department of Mathematics and

Statistics, Florida International University, for her guidance in the completion of this project.

Also, the author would like to thank the editors for their useful comments and suggestions which

considerably improved the presentation of the paper.

REFERENCES

[1] Douglas Montgomery; Design and Analysis of Experiments 7th

Edition: Wiley, 2008; Section

6.3; pp 215.

[2] "Factors That Affect Fuel Economy." U.S. Department of Energy. 27 Nov 2011

< http://www.fueleconomy.gov/feg/ratings2008.shtml >.

APPENDIX

A. MINITAB RESULTS

Factorial Fit: MPG versus Block, A, B, C Estimated Effects and Coefficients for MPG (coded units)

Term Effect Coef SE Coef T P

Constant 21.595 0.2039 105.90 0.000

Block 1 -0.574 0.2884 -1.99 0.066

Block 2 0.314 0.2884 1.09 0.294

A -3.302 -1.651 0.2039 -8.10 0.000

B -5.306 -2.653 0.2039 -13.01 0.000

C 6.852 3.426 0.2039 16.80 0.000

A*B -2.260 -1.130 0.2039 -5.54 0.000

A*C -0.618 -0.309 0.2039 -1.52 0.152

B*C -1.633 -0.817 0.2039 -4.00 0.001

A*B*C 0.289 0.145 0.2039 0.71 0.490

S = 0.999004 PRESS = 41.0610

R-Sq = 97.61% R-Sq(pred) = 92.96% R-Sq(adj) = 96.07%

Analysis of Variance for MPG (coded units)

Source DF Seq SS Adj SS Adj MS F P

Blocks 2 3.964 3.964 1.982 1.99 0.174

Main Effects 3 516.098 516.098 172.033 172.38 0.000

A 1 65.427 65.427 65.427 65.56 0.000

B 1 168.942 168.942 168.942 169.28 0.000

C 1 281.729 281.729 281.729 282.29 0.000

2-Way Interactions 3 48.943 48.943 16.314 16.35 0.000

Page 58: Polygon 2012

A*B 1 30.640 30.640 30.640 30.70 0.000

A*C 1 2.295 2.295 2.295 2.30 0.152

B*C 1 16.008 16.008 16.008 16.04 0.001

3-Way Interactions 1 0.502 0.502 0.502 0.50 0.490

A*B*C 1 0.502 0.502 0.502 0.50 0.490

Residual Error 14 13.972 13.972 0.998

Total 23 583.480

Obs StdOrder MPG Fit SE Fit Residual St Resid

1 1 18.1070 19.4987 0.6449 -1.3917 -1.82

2 2 19.4260 19.3642 0.6449 0.0619 0.08

3 3 17.9226 18.3750 0.6449 -0.4524 -0.59

4 4 13.9241 13.1421 0.6449 0.7820 1.02

5 5 29.9320 28.8923 0.6449 1.0397 1.36

6 6 27.9365 26.9421 0.6449 0.9944 1.30

7 7 23.9782 23.9230 0.6449 0.0552 0.07

8 8 16.9429 18.0320 0.6449 -1.0890 -1.43

9 9 21.2963 20.3870 0.6449 0.9093 1.19

10 10 20.0456 20.2525 0.6449 -0.2069 -0.27

11 11 18.3633 19.2633 0.6449 -0.9000 -1.18

12 12 14.2636 14.0303 0.6449 0.2332 0.31

13 13 29.2308 29.7806 0.6449 -0.5498 -0.72

14 14 26.9006 27.8304 0.6449 -0.9298 -1.22

15 15 25.0000 24.8113 0.6449 0.1887 0.25

16 16 20.1754 18.9202 0.6449 1.2552 1.65

17 17 20.8145 20.3321 0.6449 0.4824 0.63

18 18 20.3426 20.1976 0.6449 0.1450 0.19

19 19 20.5607 19.2084 0.6449 1.3524 1.77

20 20 12.9602 13.9755 0.6449 -1.0152 -1.33

21 21 29.2359 29.7257 0.6449 -0.4898 -0.64

22 22 27.7108 27.7755 0.6449 -0.0646 -0.08

23 23 24.5125 24.7564 0.6449 -0.2439 -0.32

24 24 18.6992 18.8654 0.6449 -0.1662 -0.22

Predicted Response for New Design Points Using Model for MPG

Point Fit SE Fit 95% CI 95% PI

1 19.4987 0.6449 (18.1156, 20.8818) (16.9484, 22.0490)

2 19.3642 0.6449 (17.9811, 20.7473) (16.8139, 21.9144)

3 18.3750 0.6449 (16.9919, 19.7581) (15.8247, 20.9252)

4 13.1421 0.6449 (11.7590, 14.5251) (10.5918, 15.6923)

5 28.8923 0.6449 (27.5092, 30.2754) (26.3420, 31.4426)

6 26.9421 0.6449 (25.5590, 28.3252) (24.3918, 29.4924)

7 23.9230 0.6449 (22.5399, 25.3061) (21.3728, 26.4733)

8 18.0320 0.6449 (16.6489, 19.4150) (15.4817, 20.5822)

9 20.3870 0.6449 (19.0039, 21.7700) (17.8367, 22.9372)

10 20.2525 0.6449 (18.8694, 21.6355) (17.7022, 22.8027)

11 19.2633 0.6449 (17.8802, 20.6463) (16.7130, 21.8135)

12 14.0303 0.6449 (12.6473, 15.4134) (11.4801, 16.5806)

13 29.7806 0.6449 (28.3975, 31.1637) (27.2303, 32.3309)

14 27.8304 0.6449 (26.4473, 29.2134) (25.2801, 30.3806)

15 24.8113 0.6449 (23.4282, 26.1944) (22.2610, 27.3616)

16 18.9202 0.6449 (17.5372, 20.3033) (16.3700, 21.4705)

17 20.3321 0.6449 (18.9490, 21.7152) (17.7818, 22.8824)

18 20.1976 0.6449 (18.8145, 21.5807) (17.6473, 22.7478)

19 19.2084 0.6449 (17.8253, 20.5915) (16.6581, 21.7587)

20 13.9755 0.6449 (12.5924, 15.3585) (11.4252, 16.5257)

21 29.7257 0.6449 (28.3426, 31.1088) (27.1755, 32.2760)

22 27.7755 0.6449 (26.3924, 29.1586) (25.2252, 30.3258)

23 24.7564 0.6449 (23.3733, 26.1395) (22.2062, 27.3067)

24 18.8654 0.6449 (17.4823, 20.2484) (16.3151, 21.4156)

Page 59: Polygon 2012

B. MINITAB GRAPHS

Figure 1: Residual Plot (Fitted Value vs. Standardized Residual)

Figure 3: Normal Probability Plot (Standardized Residual vs. Percent)

Figure 2: Residual Plot (Standardized Residual vs. Observation Order)

Figure 4: Normal Probability Plot (Response Variable vs. Percent)

30252015

2

1

0

-1

-2

Fitted Value

Sta

nd

ard

ize

d R

esid

ua

l

Versus Fits(response is MPG)

3210-1-2-3

99

95

90

80

70

60

50

40

30

20

10

5

1

Standardized Residual

Pe

rce

nt

Normal Probability Plot(response is MPG)

24222018161412108642

2

1

0

-1

-2

Observation Order

Sta

nd

ard

ize

d R

esid

ua

l

Versus Order(response is MPG)

353025201510

99

95

90

80

70

60

50

40

30

20

10

5

1

MPG

Pe

rce

nt

Mean 21.60

StDev 5.037

N 24

KS 0.149

P-Value >0.150

Probability Plot of MPGNormal

Page 60: Polygon 2012

MINITAB GRAPHS

Figure 5: Normal Probability Plot (Standardized Effect vs. Percent)

20151050-5-10

99

95

90

80

70

60

50

40

30

20

10

5

1

Standardized Effect

Pe

rce

nt

A A

B B

C C

Factor Name

Not Significant

Significant

Effect Type

BC

AB

C

B

A

Normal Plot of the Standardized Effects(response is MPG, Alpha = 0.05)

Page 61: Polygon 2012

MINITAB GRAPHS

Figure 6: Contour Plot of A/C Level vs. Traffic Pattern (Tire Pressure at 28 psi)

Figure 8: Contour Plot of A/C Level vs. Tire Pressure (Traffic Pattern is Light)

Figure 7: Contour Plot of A/C Level vs. Traffic Pattern (Tire Pressure at 32 psi)

Figure 9: Contour Plot of A/C Level vs. Tire Pressure (Traffic Pattern is Heavy)

A

B

1.00.50.0-0.5-1.0

1.0

0.5

0.0

-0.5

-1.0

C -1

Hold Values

>

< 14

14 16

16 18

18 20

20 22

22 24

24 26

26 28

28

MPG

Contour Plot of MPG vs B, A

A

C

1.00.50.0-0.5-1.0

1.0

0.5

0.0

-0.5

-1.0

B -1

Hold Values

>

< 14

14 16

16 18

18 20

20 22

22 24

24 26

26 28

28

MPG

Contour Plot of MPG vs C, A

A

B

1.00.50.0-0.5-1.0

1.0

0.5

0.0

-0.5

-1.0

C 1

Hold Values

>

< 14

14 16

16 18

18 20

20 22

22 24

24 26

26 28

28

MPG

Contour Plot of MPG vs B, A

A

C

1.00.50.0-0.5-1.0

1.0

0.5

0.0

-0.5

-1.0

B 1

Hold Values

>

< 14

14 16

16 18

18 20

20 22

22 24

24 26

26 28

28

MPG

Contour Plot of MPG vs C, A

Page 62: Polygon 2012

MINITAB GRAPHS

Figure 10: Contour Plot of Traffic Pattern vs. Tire Pressure (A/C Level at Low)

Figure 12: Response Surface Plot A/C Level vs. Traffic Pattern (Tire Pressure at 28 psi)

Figure 11: Contour Plot of Traffic Pattern vs. Tire Pressure (A/C Level at High)

Figure 13: Response Surface Plot A/C Level vs. Traffic Pattern (Tire Pressure at 32 psi)

B

C

1.00.50.0-0.5-1.0

1.0

0.5

0.0

-0.5

-1.0

A -1

Hold Values

>

< 14

14 16

16 18

18 20

20 22

22 24

24 26

26 28

28

MPG

Contour Plot of MPG vs C, B

1

14

016

-1

18

0

20

-1

1

MPG

B

A

C -1

Hold Values

Surface Plot of MPG vs B, A

B

C

1.00.50.0-0.5-1.0

1.0

0.5

0.0

-0.5

-1.0

A 1

Hold Values

>

< 14

14 16

16 18

18 20

20 22

22 24

24 26

26 28

28

MPG

Contour Plot of MPG vs C, B

1

200

-1

25

0

30

-1

1

MPG

B

A

C 1

Hold Values

Surface Plot of MPG vs B, A

Page 63: Polygon 2012

MINITAB GRAPHS

Figure 14: Response Surface Plot A/C Level vs. Tire Pressure (Traffic Pattern is Light)

Figure 16: Response Surface Plot Traffic Pattern vs. Tire Pressure (A/C Level at Low)

Figure 15: Response Surface Plot A/C Level vs. Tire Pressure (Traffic Pattern is Heavy)

Figure 17: Response Surface Plot Traffic Pattern vs. Tire Pressure (A/C Level at High)

1

200

25

-1

30

0 -11

MPG

C

A

B -1

Hold Values

Surface Plot of MPG vs C, A

1

20

0

25

-1

30

0 -11

MPG

C

B

A -1

Hold Values

Surface Plot of MPG vs C, B

1

15

0

20

-1

25

0 -11

MPG

C

A

B 1

Hold Values

Surface Plot of MPG vs C, A

1

15

0

20

25

-1

0 -11

MPG

C

B

A 1

Hold Values

Surface Plot of MPG vs C, B

Page 64: Polygon 2012
Page 65: Polygon 2012

THE COST OF EXCLUSION 1

The Cost of Exclusion

Mary Ann Benites

Associate Professor

Department of English for Academic Purposes

Miami Dade College, Hialeah Campus

E-mail: [email protected]

Abstract

This paper will address the importance of in-state tuition benefits for undocumented college

bound students. In the United States, each and every year, approximately 65,000 undocumented

students graduate from American high schools and are faced with an educational paradox. This

quandary is due to the fact that, in 1982, the U.S Supreme ruled in favor of providing equal

access to public K-12 education regardless of a child's immigration status. While this ruling

should be considered a noble act, undocumented college bound students face serious legal

restrictions to higher education upon graduation. Clearly, without sound federal educational

policy that includes the ability to obtain in-state tuition for higher education, thousands of

American raised high school graduates are doomed for a life of poverty. The literature will

interpret current immigration policy and prospects for undocumented college bound youth.

Consideration will be given to the reality that if undocumented students are provided

opportunities to pursue higher education, these students could greatly benefit the U.S. tax base

and help to promote the national economy.

Key words: Dream Act, Illegal Immigration Reform and Immigrant Responsibility Act, Phyler v

Doe 1982, Undocumented Students.

Page 66: Polygon 2012

THE COST OF EXCLUSION 2

Introduction

The Plight of Undocumented Students

In a recent 2011 study compiled by Educators for Fair Consideration, it was estimated

that 11.2 million undocumented immigrants of all ages live in the United States of America. Of

the millions of undocumented residents, 1.1 million are children under the age of eighteen. In

addition, there are approximately 65,000 undocumented students who graduate from high school

each year. Through no fault of their own, undocumented college bound students are not allowed

to participate in higher education and as a tax payer society because they were brought to the

United States illegally as children.

As a nation, one should consider a college education is a person’s strongest barrier

against a life of poverty and dependence on governmental funds. Of the millions mentioned,

there are only 7,000 to 13,000 undocumented students enrolled in colleges throughout the United

States. However, more would attempt to participate if the federal government would mandate

that all fifty states provide students the ability to pay in-state college tuition. As it stands, only

thirteen states have passed laws that allow undocumented students to qualify for in state tuition

(Educators for Fair Consideration, 2011).

In order to comprehend this debatable state of affairs, one must investigate the

characteristics of college bound undocumented students. Most of these students have lived in the

U.S. almost all of their lives, and they have learned to view themselves as Americans. These

students have become acculturated to pursue the American dream. In like manner, many have

excelled academically in high school and desire to pursue a college education. Still, a costly

social problem exists due to the fact that there is no federal pathway to supporting these students

in becoming legal residents.

Page 67: Polygon 2012

Moreover, one must consider that undocumented students who attend our nation’s public

K-12 classrooms have been acculturated to believe in themselves, and follow American core

values of competition and hard work equals material success in the United States. However, on

graduation day, undocumented students face extreme financial uncertainty due to their legal

status and inability to pursue the American dream. As a result, most undocumented high school

graduates continue to exist within a deficient economic cycle. Currently, nearly 40% of

undocumented children live below the poverty level as opposed to 17% of native born children

(Gonzales & Orozco, 2009). These statistics are alarming, and one must keep in mind that due to

the Phyler v. Doe 1982 ruling, the United States educates undocumented children in public

schools. Yet, there is no easy transition to higher education after the fact.

In order to comprehend the argument behind instate tuition and or aid for undocumented

college bound students, one must realize it was the Supreme Court of the United States that ruled

in favor of allowing undocumented K-12 students to attend our nations classrooms in the first

place. In brief, the Court cited the Equal Protection Clause in the Fourteenth Amendment The

Court also ruled that regardless of status under immigration laws, an alien is a "person." As such,

illegal resident children are also protected by the Due Process Clauses of the Fifth and

Fourteenth Amendments. In this landmark case, the Court struck down a Texas state statute that

denied educational funding to illegal aliens. The Court also ruled against school districts which

attempted to charge illegal immigrant children a $1,000 annual tuition fee per student. Prior to

this class action court case, there were no financial provisions to educate undocumented school

children (Phyler v Doe, 1982, 457, U.S. pp. 210-216).

Page 68: Polygon 2012

Moreover, in a 5 to 4 ruling, the Supreme Court cited that denying illegal immigrant

students the right to a proper education would contribute to the creation of a subclass of

illiterates within the nation. The Court cited, "Public education has a pivotal role in maintaining

the fabric of our society and in sustaining our political and cultural heritage." They added by

ruling, "Depriving a person of an education takes an inestimable toll on the social, economic,

intellectual, and psychological wellbeing of the individual, and it poses an obstacle to individual

achievement." (Phyler v Doe, 1982, 457, U.S. pp. 216-224).

Just as in the 1954 Brown vs The Board of Education ruling, the Court did not mention

provisions regarding higher education. However, in today's challenging economy, one requires

more than a high school diploma to remain financially solvent. What's more, appropriate

educational policies must be taken to reduce this sub group's dependence on public assistance.

Camarota (2004) discusses the fact that on average, illegal households i.e. undocumented parents

with children born in the United States pay approximately $4,200 annually in forms of federal

taxes, yet these families impose higher costs on the national economy of approximately $6,950

per household. Camarota adds that, "The median income of a college graduate with a bachelor's

degree is $49,900 of which an estimated $11,800 is paid in annual taxes." Clearly, solutions must

be found to bridge higher education for college bound undocumented students as opposed to the

maintenance of the status quo.

Still, it is the mismatch of federal policies that enable the status quo. The enactment of

the Illegal Immigration Reform and Immigrant Responsibility Act of 1996 ("IIRIRA"), on

September 30, 1996, resulted in significant changes to U.S. immigration laws. With reference to

higher education, IIRIRA Section 505 in particular addresses the following criterion:

An alien who is not lawfully present in the United States shall

Page 69: Polygon 2012

not be eligible on the basis of residence within a State ... for any

postsecondary education benefit unless a citizen or national of the

United States is eligible for such a benefit (in no less an amount,

duration, and scope) without regard to whether the citizen or national

is such a resident.

Harmon, Carne, Lizardy-Hajbi, and Wilkerson (2010) argue that while most states

interpret IIRIRA to mean that undocumented immigrants cannot receive in-state tuition rates,

there are states which have opted to disagree. It appears that the use of the word “unless,” has

allowed states to interpret this verbage as a loophole. As such, thirteen states have passed laws

that allow undocumented students to qualify for "in-state tuition" at public colleges or

universities within their state of residence.

Moreover, California, Illinois, New Mexico and Texas are the only four states which

allow students access to state funded financial aid. These laws require that undocumented

students attend high school for a specified time frame in order to qualify for in-state tuition

benefits. This aid includes grants, work study programs, or publically funded loan programs

(Educators for Fair Consideration, 2011).

However, there are difficult financial barriers solidly in place that block the pathway

between high school and higher education for the undocumented. It is estimated that the annual

cost of full-time "instate tuition" at a two year college is $2,713.00; while, the cost of instate

tuition at a public four year university averages at $7,605.00. To add, in academic year 2009-10,

more than $154 billion in federal and state aid was awarded to undergraduate students. Also,

much of these funds do not require repayment by the student. In a recent report publish by

College Board, the average amount of financial aid dispersed to undergraduate students is

Page 70: Polygon 2012

$11,500; this includes approximately $6,000 in grants which do not require repayment (What It

Costs to Go to College, 2011). Clearly, undocumented college bound students must view higher

education as an unattainable American dream.

What has been done to address this plight? The most notable effort to addressing the

predicament of college bound undocumented students the Development, Relief, and Education

for Alien Minors (DREAM Act). Multiple DREAM Act bills have been introduced and debated

to address the undocumented college bound student population. The DREAM Act was initially

introduced by Orrin Hatch (R) as a legislative proposal on August 1, 2001 with the latest version

recently reintroduced by Senator Harry Reid (D) on May 11, 2011 (S.952. Library of Congress,

2011). Yet, to date, every attempt to pass this bi-partisan legislative proposal has failed.

The primary issue in the DREAM Act legislation is the language stated in the bill. It

appears in the 1996 bill, there is a two prong approach which enabled some unauthorized alien

students to become U.S. legal permanent residents during their college tenure or after military

service. In the 111th Congress, the House attempted to approve revising the DREAM Act

language as part of an unrelated bill. However, the Senate failed, on a 55-41 vote, to invoke

revision of the language on the DREAM Act amendment and the bill died. Yet, once again

another attempt to pass the DREAM Act failed in December 2010 when the 112 Congress failed

to enact the bill into law (Bruno, 2011).

It appears another glaring drawback to the passage of the DREAM Act is the fact that

undocumented college students would be eligible for federal work-study funds. Those against the

passage of the DREAM Act argue that by spreading financial aid dollars, in a bad economy,

resources would be limited for American or legal resident students. Moreover, throughout the

decade of the DREAM Act, opponents pointed out that in-state tuition benefit laws would result

Page 71: Polygon 2012

in added costs to taxpayers (Zota, 2009). In addition to the financial argument against the

DREAM Act, there is the belief that by making financial aid benefits more available to the

undocumented, it would encourage more unauthorized immigration into the nation. As such,

opponents strongly objected to subsidizing educational benefits for what they believe are people

who are in clear violation of our nation’s immigration laws.

Yet, what are the alternatives? First, the status quo, only continues to approach

undocumented students from differing perspectives with few benefiting and most not. This

nonsensical approach fails to provide college bound undocumented students a route to continued

education. Clearly, our current immigration policies most likely appeal to conservative

constituencies; however, from the standpoint of what is morally right for the nation, these

policies greatly fail to improve upward mobility in the United States of America. It makes no

sense to provide undocumented students a free K-12 education and then welcome them to a life

on welfare benefits after high school. These educational legal barriers must be addressed to help

foster our nation's economic growth as well (Jewell, 2009).

As such, the literature will address the lack of sound federal policies which must be

changed and implemented to guarantee equal access for college bound undocumented students

who have met specific criterion for in-state tuition benefits.

Review of the Literature

Unclear Federal Policies

Abrego and Gonzales (2010) cite this problem as one caused because there are no clear

federal policies enacted which support undocumented college bound students. As there are no

clear federal policies which indicate what to do with undocumented students after high school

graduation, states have increasingly attempted to create their own legislative solutions. As

Page 72: Polygon 2012

previously mentioned, only thirteen states have attempted to bypass language and allow

undocumented students to pay in-state tuition fees. The following states which allow

undocumented students to pay reduced costs are: California, Connecticut, Illinois, Kansas,

Maryland, Nebraska, New Mexico, New York, Rhode Island, Texas, Utah, Washington, and

Wisconsin.

(Olivias, 2009) adds that in said states, the student is generally required to have resided

for a specific time (usually 5 years), attend and graduate from a high school in that state as well

as make a legitimate attempt to obtain lawful residency status. While this is a noble attempt to

aid these college bound students, there are numerous students, who currently reside in other

states, that do not meet in-state tuition criterion.

Nonetheless, Abrego and Gonzales (2010) postulate that the DREAM Act which was

aimed to provide immigration relief to all undocumented students would have helped to remove

unclear state policies and open the legal barriers to higher education. This legislature could have

increased the likelihood of upward social mobility. The authors cite that the DREAM Act, also

provides the best pathway to legal residency. Moreover, it should be considered the sole solution

to the economic predicament of the undocumented college bound student. To add, in a federal

policy evaluation which attempts to study the effects of passing the DREAM Act, Flores (2010),

theorizes the educational completion rates of undocumented high school students are particularly

important in assessing if they would likely benefit from a federal mandate which favors in-state

resident tuition assistance. However, there are no valid baselines of measurement to date.

Nevertheless, Flores (2010) attempts to draw a hypothesis and indicates facts. As it

appears, under the current educational system, one-sixth of the undocumented student population

is under age 18. In like manner, the author cites a recent 2010 study conducted by the Urban

Page 73: Polygon 2012

Institute which estimates 49% of “unauthorized youth” of all races and ethnicities do not

complete high school. This is in comparison to 21% of their legal immigrant counterparts and

11% of native-born students in the United States. In her own study, Flores adjusts her sampling

to address the metropolitan Latino population in states with an in-state tuition policy versus

states which lack one.

The results of Flores' policy change initiative indicate - The sample students were 1.52

times more likely to enroll in college directly after graduation if allowed to pay in-state tuition

fees. Flores (2010) concludes that the availability of an in-state tuition policy significantly affects

higher education decisions of undocumented students, yet the author adds we know less about

how they perform in postsecondary institutions.

Indeed, one may conclude it is obvious undocumented students would attempt to gain

access to higher education if it were available to them, but this issue is not black and white. As

previously mentioned, in 1996, Congress sought to clarify and block the status of undocumented

immigrant students within higher education settings by implementing Section 505 of the Illegal

Immigration Reform and Immigration Responsibility Act (IIRIRA). Perry (2006) elaborates

IIRIRA operates under the assumption that the law does not completely ban states from offering

in-state tuition to undocumented students due to interpretation of the language by individual

states.

Arbrego and Gonzalez (2010) cite Glassi (2003) and add that the federal government has

never issued actual regulations specifying how the IIRIRA provision should be interpreted and

enforced. Therefore, due to the lack of clarity at the federal level, this law continues to be

interpreted differently by each state. As such, it appears the states which provide in-state tuition

for undocumented immigrants cite their educational policies do not violate IIRIRA because

Page 74: Polygon 2012

undocumented students have attended high schools and meet more stringent residency

requirements than their U.S. counterparts.

Nonetheless, there are legislators and voters who strongly believe that students who do

not carry legal residency are not entitled to higher education. North (2009) points out that state

legislatures opt to bar undocumented immigrant students from in-state tuition benefits to appease

their constituents. North (2009) discusses Olivias (2008) research on the effect of Arizona

Proposition 300 as a clear example of appeasing the voters. In 2006, Arizona voters approved

Proposition 300 which mandated that university students who were not U.S. citizens or

permanent residents, or who do not have lawful immigration status, would not be eligible for in-

state tuition status or state subsidized by financial aid. The Arizona initiative resulted in the

removal of almost 5,000 students from in-state tuition status.

Without federal policies enacted, undocumented students can attend college classes one

day, and be ousted the next. In a similar manner, a waiver system in Georgia had once allowed

each public college to award in-state status to undocumented students for up to two percent of

the college’s headcount. However, in 2007, voters approved SB529, the Georgia Security and

Immigration Compliance Act, and by 2008, undocumented students were unable to establish in-

state residency (North, 2009).

Clearly, this educational scenario is a paradox in action. As a general rule, undocumented

students are ineligible for state and federal financial aid packages despite the fact that their

parents file tax returns and pay into the system. Olivas (2009) postulates studies indicate many

undocumented parents file their returns with an individual taxpayer identification number (ITIN).

In essence, this practice is the federal government’s method to collect funds from all citizens

regardless of their immigration status. Ring and Svensson (2007) add that these unsympathetic

Page 75: Polygon 2012

paradoxical policies, at the federal level, allow states to run renegade with the future of

undocumented college bound students.

Furthermore, Ring and Svensson (2007) add if large groups of undocumented residents

are simply ignored the ramifications could be quite severe in terms of social ills in the United

States. There is a correlation between social status, crime, and frustration and fueled by a lack of

resources. North (2009) agrees that a growing portion of undocumented high school graduates

who are not able to obtain a higher education due to finances or opportunities, may generate

feelings of anger toward those who have the chance to better themselves. As such, the problems

of exploitation, crime, and social class intensify. Also, due to archaic federal policy, Jewell

(2009) adds these students will most likely not take their K-12 education seriously as they can't

see themselves with a future in this nation.

Shiu, Kettler & Johnson (2009) concur with Jewell (2009) and postulate, with the

implementation of sound fiscal immigration policy, the potential numbers of crime, health, social

related ills could go down significantly as undocumented young adults would be given the

chance to obtain meaningful employment. Furthermore, the enactment of sound fiscal

immigration policy which favors all of our nation's college bound youth would have numerous

social benefits in particular, those who encompass a marginalized population group.

Possible Solutions and Potential Outcomes

If the United States is prepared to pay for added crime and fund added police officials

and welfare agencies, then the do nothing approach works best. Furthermore, due to the Plyler v

Doe 1982 ruling, illegal immigrant students will continue to fill our nation's already

overcrowded classrooms. As such, the do nothing approach will continue to result in burdening

the United States welfare system as the growing number of undocumented students reach

Page 76: Polygon 2012

adulthood. Edwards (2010) cites that undocumented students have trouble seeking ways to make

ends meet with merely a high school diploma and no legal status. Edwards (2010) continues his

point by stating taxpayers pay $4.3 billion dollars every year toward undocumented residents

living in the United States.

In order to illustrate the quandary associated with maintaining the status quo versus

finding a better solution for the good of the nation, one must explore viable solutions. In

particular, a viable return on higher education investment for all of our nation's children.

Fraum (2011) cites two Rand Studies published in 2001 and in 1996 respectively to elaborate

on the known fact that higher levels of education translate into greater public fiscal returns. The

Rand Studies cites the potential economic benefits of doubling the rate at which U.S. born

Latinos receive college degrees. U.S. born Latinos were tracked due to the current laws which

discriminate against undocumented college students.

As it stands, both studies estimated a cost of $6.5 billion to double the rate of Latinos

earning a bachelor’s degree. The studies found that doing resulted in an increase of $13 billion

in public revenues in the form of increased funds from taxes and contributions to Medicare and

Social Security. Furthermore, Fraum (2011) postulates that the RAND researchers found the

return on investment would only take 13 to 15 years for the public to recoup the costs of their

investment.

Noorani & Belanger, (2009) cite the most viable alternative to producing an answer that

makes sense for the American people is education and immigration enforcement combined with

a pathway to legal residency. There must be a significant coupling of ideological streams that

unite in one direction and not a back and forth in a continued discourse of problems. Moreover,

Noorani and Belanger continue that a resolution is often difficult to reach, yet key stakeholders

Page 77: Polygon 2012

and interests groups must see how beneficial it is to give qualified students a gateway to

education and legal immigration status as opposed to added financial ills to our society.

Frum (2011) brings a fresh perspective to this debate and adds 30 states will see changes

in the number of students graduating from high school in the next ten years. The ranges are noted

as increases of less than 10 percent to more than 100 percent. Also, the remaining 20 states will

see a decline in high school graduates. Frum continues by indicating this scenario will have an

adverse effect on the number of college enrollments.

Therefore, the author elaborates that a balance should be implemented which allows

undocumented students to attend colleges which suffer from low enrollments. Frum (2011)

summarizes her policy idea and elaborates that by admitting undocumented students from

neighboring states, institutions would be able to fill previously vacant higher education seats and

in the process colleges can receive new tuition dollars.

Indeed, the step to establishing sound educational and fiscal policy is the ability to step

back and review its long term value. Barach (2009) adds that sound educational and fiscal policy

should not be created for the purpose of putting an end to all of the illegal immigration problems

of the United States, but rather to provide a chance at hope for this narrowly defined population

group who have lived in the United States, for more than five years, and have graduated from

American high schools. Clearly, the long-term ramifications of doing nothing are apparent and

have already been documented. The alternative to maintaining the status quo has already proven

to be extremely difficult to police, and it is even more costly to the American taxpayer.

Conclusion

To conclude, the fact still remains that a large number of undocumented college bound

students, in the United States, are faced with a multitude of obstacles as they struggle to gain

Page 78: Polygon 2012

access to higher education. Many have the academic preparation to pursue a postsecondary

education, but their economic and social mobility is severely restricted by their undocumented

status (Gonzalez & Orozco, 2009). Indeed, the implementation of sound fiscal policy toward

illegal immigration could be a singular move toward improving access to college as well as

defining a structured path from which to obtain legal status.

Moreover, sound policy would play a major role in rejuvenating the economy, as more

students will be eligible to matriculate into college. With this matriculation, there will be an

increase in the number of qualified workers who can commit themselves as contributing

members of the marketplace. Thus, not only could these long-term policy effects provide a

much-needed jolt to economic revitalization, it could also refresh the national landscape for

undocumented high school graduates, their families and future generations of Americans.

Consequently, the positive impact of sound fiscal educational policy in favor of undocumented

college bound students could resonate positively for years to come.

Page 79: Polygon 2012

References

Abrego L., & Gonzales, R. (2010), Blocked paths, uncertain futures: The postsecondary

education and labor market prospects of undocumented Latino youth. The Post Journal of

Education for Students Placed at Risk, pp. 144–157.

Bardach, E. (2009). A practical guide for policy analysis: The eightfold path to more effective

problem solving. Washington, DC: Sage Publications.

Bruno, A. (2011). Unauthorized Alien Students: Issues and DREAM Act Legislation March 22,

2011 Report, Congressional Research Office.

Camarota, S. (2004), the high cost of cheap labor: Illegal immigration and the federal

government. Center for Immigration Studies, Washington, D.C.

Educators for Fair Consideration (2011) Retrieved from www. e4fc.org

Edwards, J. (2010). The medicaid costs of legalizing illegal aliens. Retrieved from

http://cis.org/medicaid-costs

Flores, S. (2010). State dream acts: The effect of in-state resident tuition policies and

undocumented Latino students. The Review of Higher Education

Frum, J. (2011). Post secondary educational access for undocumented students: Opportunities

and constraints. American Academic (3).

Gonzales, R. G. & Orozco, M. (2009), Lives on hold: The college dreams of undocumented

students. College Board Advocacy Report April 2009.

Harmon, C., Carne, G., Lizardy-Hajbi, G, & Wilkerson, E. (2010). Access to higher education

for undocumented students: outlaws of social justice, equity, and equality. Journal of

Praxis in Multicultural Education 5(1), 67-82.

Jewell, M. (2009), Undocumented-with College Dreams: What happens when an undocumented

Page 80: Polygon 2012

student decides to go to college? Educational Leadership, 66 (7), 48-53. Retrieved from

http://0-ehis.ebscohost.com.

North, D. (2009). The immigrant paradox: The stalled progress of recent immigrants’ children.

Retrieved from http://cis.org/ImmigrantParadox.

Noorani, A., & Belanger, M. (2009). The need for progressive immigration reform. Social

Policy, Spring, pp. 13-14.

Olivas, M. (2009). Undocumented college students, taxation, and financial aid: A technical n

note. The Review of Higher Education, (32) 3 Spring 2009, pp. 407-416.

Perry, A. (2006).Toward a theoretical framework for membership: The case of undocumented

immigrants and financial aid for postsecondary education. The Review of Higher

Education, (30) 1. pp. 21-40.

Pyler v. Doe No. 80-1538 (1982), Cornell University Law School. Legal Information Institution.

Retrieved from www.lawcornell.edu.

Ring, J. & Svensson, R. (2007). Social class and criminality among young people: A study

considering the effects of school achievement as a mediating factor on the basis of

Swedish register and self-report data. Journal of Scandinavian Studies in Criminology

and Crime Prevention, 8, 210-233.

Shiu, A., Kettler, T., & Johnsen, S. (2009). Social effects of Hispanic students enrolled in an AP

class in middle school. Journal of Advanced Academics, 21(1), 58-82.

Zota S. (2009). Unauthorized immigrants access to higher education: Fifty states, different

directions. Spring/Summer Popular Government.

Page 81: Polygon 2012

Polygon  Spring  2012   74  

Critical Pedagogy and English Language Acquisition Mary Ann Benites

Associate Professor

Department of English for Academic Purposes Miami Dade College, Hialeah Campus

E-mail: [email protected]

Abstract

This paper aims to address the extent to how Critical theory should function in teaching and

learning English. The English language is frequently utilized to communicate across borders, and

it plays a significant factor in the current era of globalization. As such, immigrants, students and

business professionals partake in learning English as a Second or Foreign Language. Yet, one

must take into account the influences of Critical Pedagogy when teaching English to second and

foreign language learners. The purpose of this paper is to comprehend the impact of critical

theory on English language teaching and learning in EFL/ESL classrooms. The literature reveals

insight as to the power of language as well as how to implement culturally sensitive pedagogy in

the classroom and curriculum.

Keywords: Culture, Critical Pedagogy, Critical Awareness, English as a Foreign Language,

English as a Second Language.

Page 82: Polygon 2012

Polygon Spring 2012 75

 Introduction

The requirement for mastering English as a means for written and spoken communication

and study has grown due to our interconnected global environment. This linguistic demand

requires English as a Second or Foreign Language educators to comprehend not only a variety of

methodologies for instruction but also apply a culturally sensitive framework in the classroom.

Therefore, teacher education is needed that supports critical reflection and pedagogy. Educators

must reflect upon content which attempts to erase miscellany in the name of a democratic society

or first world mind-set. Teaching strategies should be adapted to maintain a student's cultural

identity as well as foster resistance to oppressive policies dictated within English language

curricula. This requires the need to take into account the liaison between language and culture.

One should commence with a clear understanding of critical pedagogy and apply its

principles in the classroom to avoid implementing ethnocentric dominance on English language

learners. Critical pedagogy has its origin from the Frankfurt School, yet the North American

School viewpoint can be traced back to the traditions of progressivism as exemplified in the

writings of John Dewey (Biesta, 1998). Yet, it is through the work of Paulo Freire (1993), which

infuses critical pedagogy into present-day education.

Haque (2007) pinpoints that Freire’s pedagogy follows a critical model by supplying a

framework that provides an explanation of the world particularly in the manner that it sanctions

and fosters inequalities and injustice. It also provides the tool for transformational change further

along within analytical processes. This means advocating for this process through a critical lens

within co-intentional education. Thus, education should be a place where teachers and students

Page 83: Polygon 2012

Polygon Spring 2012 76

 are both subjects, not only in the task of unveiling a reality real world experiences, but also in the

task of reinforcing knowledge (Freire, 1993).

In essence, within Freire’s critical framework is an aspiration for emancipation and

freedom from oppression. Thus, the teaching and learning environment must be dialogic, provide

empowerment and incorporate the concept of voice (Haque, 2007). Crookes and Lehner (1998)

specify that critical pedagogy should be carefully considered as goals in the teaching of ESL and

EFL. As such, three goals must be considered: (1) Simultaneous development of English

communicative abilities (2) Application of knowledge to develop a critical awareness of the

world (3) Ability to act on knowledge and awareness to improve matters. In like manner, an

understanding and respect of the student's culture without the execution of ethnocentric

dominance is paramount to classroom success.

Therefore, to develop an awareness of unbiased English language instruction within the

tenets of critical pedagogy, a discussion on critical language awareness, and the power of

language must be addressed. The literature shall also support strategies to reduce cultural

dominance when teaching English to second or foreign language learners.

Review of the Literature

Critical Pedagogy

Critical pedagogy makes it explicit of how education is constantly shaped by ideologies

arising from “power, politics, history, and culture” (Huang, 2009). (Giroux, 1994) adds that

“Critical pedagogy aims to illuminate the relationship among authority and power.” Within an

educational framework, it questions the power relationships between teachers, students,

institutions and society. Moreover, it pays noteworthy consideration to the relationship between

Page 84: Polygon 2012

Polygon Spring 2012 77

 knowledge and power. As such, it questions the role of institutional power within the process of

knowledge creation. Huang (2009) indicates that critical pedagogy dictates the fact of how and

why some realities are legitimated while others are silenced or made invisible, and whose

knowledge is officially validated and which version of truth is actually left out. Wink (2005)

sums up critical pedagogy as the concern which challenges unequal power relations in

interactions between individuals and institutions. Furthermore, Wink (2005) draws attention to

the cultural, political, social, and historical influences on schools and brings to light the issues of

power and its relationship to classroom practices of teaching and learning. Wink continues that

critical pedagogy is concerned with how methodology can be decisive, that is, how the method

of delivery influences the process and content of knowledge construction.

Accordingly, educators whose practices are derived from critical philosophy deem

that teaching and learning should also be connected to real life contexts that are associated with

communities at large. These methods should also transform students’ and teachers’ lives to the

degree that pupils are encouraged to perform as change agents in society (Huang, 2009).

Clearly, critical pedagogy can be distinguished from other educational philosophies in

that its main concern lies with classroom practices with an emphasis to learning that extends

beyond the classroom into the community at large. Educators may wonder just how critical

theories translate into the English as a Second or Foreign Language classroom.

Norton and Toohey (2004) postulate that critical pedagogy correlates to English

language learning with reference to social change in varying socio-economic levels of society.

Moreover, the authors claim that Critical pedagogy enables the view of language as a social

practice that constructs the ways learners can better understand themselves when acquiring

Page 85: Polygon 2012

Polygon Spring 2012 78

 English. Thus, students become more aware their surroundings as well as their contribution to

society at large if they can comprehend the culture representations and speak English.

Critical Language Awareness

In order to comprehend the tenets of critical principles in English as second or foreign

language learning, one must analyze the nature of the relationship between language and culture.

Shaul and Furbee (1998) state that language and culture are systematic to a large degree and are

observable and describable. The authors indicate that systematic description of language is noted

as linguistics while the description of cultures is called ethnography. Brown (2007) adds that

both are tightly interwoven that the two cannot be separated without losing the significance of

one another. Kuang (2007) cites that, "Language is the carrier of culture and culture is the

content of language, and it may be hard to learn a language without knowing its culture" (pp.

75).

Restating principles derived by McLeod (1976), Kuang (2007) maintains that second and

foreign language educators should teach their students about the cultural activities of the target

language whether or not it is indicated in the curriculum. Moreover, Kuang (2007) adds that

students will become empowered if they comprehend new cultural principles while learning the

language. In essence, language teaching is actually culture teaching. More importantly, Cox and

Assis-Peterson (1999) ascertain that a critical pedagogical curriculum requires English as Second

or Foreign teachers to scrutinize the dominant discourse presented and consider if they are

contributing colonial dominance in the teaching of language.

Cox and Assis-Peterson (1999) add that further reflection should be taken into account,

by educators, with reference to the fabrication of discriminatory and unjust social structures

which perpetuate the hegemonic power of English. As such, educators are directly responsible

Page 86: Polygon 2012

Polygon Spring 2012 79

 for guiding students in an attempt to use their new found knowledge of English for democratic

purposes like social alteration and to help the less fortunate in society.

Fairclough (1992) also points out that English language education should serve as an

avenue to resolve social inequalities that arise from power relationships. Fairclough (1992)

proclaims that linguistics which contents itself with solely descriptive language practices and no

attempt to relate the content to social power relations is missing an important point.

Furthermore, Fairclough (1992) also indicates the acquisition of mechanical skills of coding and

decoding of linguistic structures without a critical element that discusses how the messages attain

different meanings in social functions deceives the learner. This deception takes place in both the

true nature of language as well as cultural practices. This dishonesty also deprives students of

their full potential for effective citizenship in a new society.

The Power of Language

Brandon, Baszile, & Berry (2009) postulate that in modern United States discourse, the

division between “good” and “bad” language usage gained saliency with the connection between

Standard American English and what is considered patriotism. At the turn of the 20th century,

Crawford, (1992) cites that President Theodore Roosevelt’s restrictive language policy made this

relationship very clear. Roosevelt stated, “We have room but for one language here, and that is

the English language." Moreover, the Roosevelt claimed, "We as a nation intend to see that the

crucible turns our people out as Americans, of American nationality and not dwellers in a

polyglot boarding house” (Crawford, 1992).

It appears that Roosevelt's powerful messages generated an “either/or” paradigm which

solidified understandings of who was and wasn't viewed as a patriotic American. As such, this

nation became synonymous with the ability to speak appropriate Standard American English. In

Page 87: Polygon 2012

Polygon Spring 2012 80

 like manner, anthropologists through the Theory of Evolution also generated culturally fixed

linguistic relationships between the civilized colonialists and their savage subjects (Brandon,

Baszile, & Berry (2009). Both nuances created an “imperialist” versus “subjects” mentality in

order to justify colonization practices in ESL/EFL curricula. Furthermore, Nieto (2004) argues

that in U.S. classrooms Standard American English has become the instrument used to transmit

and maintain Anglo-American culture and language on immigrant children. Indeed, these

children are taught early on that if they want to succeed in American society and culture, they

need to acquire the language of dominant discourse. As such, linguistic diversity in the U.S. has

come to be viewed as a rather troublesome barrier, and many schools still attempt to rid

immigrant students of this burden as quickly as possible (Nieto, 2004).

Moreover, Henry Trueba's (1993) Theory of Castification has been viewed as an aspect

to consider in the teaching of English to non native speakers. Trubea (1993) states that

castification of language minority families in the United States is caused by institutional

oppression and by the dominant group. In the case of language minority students, castification

oppresses ESL students by words utilized in public discourse. Trueba (1993) postulates that

verbiage used in the English language promotes racism and a loss of dignity. Such common

language includes words like resident aliens or illegal aliens which are commonly used in

government documentation.

Cultural Considerations

Citing from Peterson and Coltrane (2003), Thu (2010) points out that English and culture

can be instructed without preconceptions. Moreover, Peterson & Coltrane (2003) and Thu (2010)

cite that language and cultural considerations should be provided in a non biased manner that

does not place judgment on the distinctions between the student's culture and the dominant one

Page 88: Polygon 2012

Polygon Spring 2012 81

 being taught. In like manner, it is of utmost importance to not only learn facts about a new

language, but also values and behaviors that support the language in order to bridge cultural

misunderstandings.

Cox and Assis-Peterson (1999) also indicate "Those who teach English must be critical of

the dominant discourse that represents the internationalization of English as good and as a

passport to the first world." This should be particularly considered in our era of globalization.

In like manner, the authors cite that, "Teachers must also consider the relationship of their work

to the spread of the language as well as critically evaluate the implications of their practice in the

production or reproduction of social inequalities." Thus, teachers should avoid maintaining that

learning English will bring the student into a higher level of society. Furthermore, teachers must

question whether they are contributing to the perpetuation of domination and find ways to avoid

coming across in such a manner in their curricula (Cox & Assis-Peterson, 1999).

In like manner, Brandon, Baszile & Berry (2009) cite work by Cummins, (1996) and

concur, educators must provide students space in the classroom to share their cultural

expressions in ways which are both validated and celebrated. Thus, teachers must apply this

knowledge as a premise for enabling students to succeed in society. Most importantly, the

authors conclude that educators must be aware that English language acquisition is neither

absolute nor linear, but it involves the creation of novel democratic discourse which empowers

the student in the process of learning (Brandon, Baszile, Berry (2009) & Cummins (1999).

Embedded within the content of democratic discourse is critical consciousness which can

be fostered through contextual patterns and cycles of texts. Barnawi (2010) analyzes contextual

patterns and cycles as a means which includes multiple readings, discussing, analyzing, and open

questioning of required tasks. This requires English language educators to promote critical

Page 89: Polygon 2012

Polygon Spring 2012 82

 thinking woven into teaching methods and learning activities. Barnawi (2010) asserts that the

implementation of critical consciousness should include narratives, advocacy letters to policy

makers and research based assignments. In essence, students are receiving critical transformative

teaching as opposed to rote linguistic methodology which often imposes cultural dominance.

Younga, Sachdevb and Seedhouse (2009) concur that an approach to English language teaching

and student learning which steers away from stereotyping will clearly be more successful, and

the authors also promote an intercultural format to weave into curricula.

Fernstein (2008) also elucidates that allowing sociopolitical discourse empowers

instructors and students to discuss language and cultural differences openly because it invites

students to discuss any feelings of conflict. According to Fernstein (2008), by adapting a

sociopolitical ideology educators can become open to comprehending the tensions which can

arise when English as a Second Language (ESL) learners do not feel culturally included by

institutions. Moreover, by maintaining openness in the classroom, ESL learners will not feel a

sentiment of dominance or invisible privilege on behalf of their instructor.

Thu (2008) adds that beyond awareness of critical discourse in the socio political sense,

educators should find the means to develop materials that integrate non bias cultural learning into

language teaching. Textbooks and handouts indeed play a crucial role in integrating culture and

the English language. As such, educators should take the time to critically assess the topics and

provide guidelines in curricula.

Conclusion

This paper has attempted to shed light on issues faced by English language educators and

learners. Moreover, the literature supports the need to reevaluate ESL/EFL programs which have

often been centered on colonial methodology. Indeed, educators are faced with methodological

Page 90: Polygon 2012

Polygon Spring 2012 83

 challenges when providing English instruction to international students. Thus, critical

pedagogical considerations have been presented to help foster awareness. In like manner,

assumptions behind pedagogical tasks presented in the literature have been discussed to provide

teaching methods which are contextualized and socio-politically appropriate to the learner. By

applying this critical lens, educators will become insightful to the fact there are alternatives to

help ESL/EFL students participate in a global society without prompting feelings of submission.

With reference to my own practice as an English as a Second/Foreign language faculty

member within higher education, I plan to implement critical pedagogy which is culturally

sensitive and promotes social consciousness. Learning to teach English as a Second or Foreign

Language within a critical framework can only help my students become successful and

productive bi-lingual individuals within our global society.

Page 91: Polygon 2012

Polygon Spring 2012 84

 References

Biesta, G. (1998) Say you want a revolution … suggestions for the impossible future of critical pedagogy. Educational Theory, 48(4), 499–510.

Brandon, L., Baszile, D. & T.Berry (2009) Linguistic moments: Language, teaching and teacher education in the U.S. Educational Foundations, Winter-Spring.

Brown, H. D. (2007). Principles of language learning and teaching. New York, NY: Pearson

Cox, P.M & Assis-Peterson A, A. (1999) Critical approaches to TESOL. TESOL Quarterly, 33 (3) pp.433-452.

Crawford, J. (1992). Hold your tongue: Bilingualism and the politics of “English only.” Reading, MA: Addision-Wesley.

Crookes, G. & Lehner, A. (1998) Aspects of process in an ESL critical pedagogy teacher education course, TESOL Quarterly, 32(2), 319–328.

Fairclough, N. (1992). Introduction. In N. Fairclough (Ed.). Critical language awareness (pp. 1- 30). London: Longman.

Freire, P. (1993) Pedagogy of the oppressed. pp. 50-51. New York, NY: Continuum.

Haque, E. (2007). Critical pedagogy in English for academic purposes and the possibility for tactics of resistance. Pedagogy, Culture & Society. 15 (1) March pp. 83–106. DOI: 10.1080/14681360601162311.

Kuang, J. F. (2007). Developing student’s cultural awareness through foreign language teaching. Sino US English Teaching, 4 (12), pp. 74-81.

McLeod, B. (1976). The relevance of anthropology to language teaching. TESOL Quarterly, 10. (2), pp. 211-220

Nieto, S. (2004). Affirming diversity: The sociopolitical context of multicultural education, 4th ed. Boston, MA: Pearson Press.

Norton, B., & Toohey, K. (2004). Critical pedagogies and language learning: An introduction. In B. Norton & K. Toohey. Critical pedagogies and language learning (pp. 1-17). UK: Cambridge University Press.

Shaul, D. L., & Furbee, N. L. (1998). Language and culture. Prospect Heights, IL: Waveland.

Trueba, H. (1993). Healing multicultural America: Mexican immigrants rise to power in rural California. London, UK. Falmer Press.

Wink, J. (2005). Critical pedagogy: Notes from the real world. (3rd ed.). New York: Pearson.

Page 92: Polygon 2012

81

Polygon

Spring 2010 Vol. 4, 81-82

COMMENTS ABOUT POLYGON

***********************************************************************

Dr. Norma Martin Goonen

President, Hialeah Campus

Miami Dade College

Thank you, Dr. Shakil, for providing scholars a vehicle for sharing their research and

scholarly work. Without opportunities for sharing, so many advances in professional

endeavors may have been lost.

N

N

M

M

G

G

Dr. Norma Martin Goonen

President, Hialeah Campus

Miami Dade College

***********************************************************************

Dr. Ana María Bradley-Hess

Academic and Student Dean, Hialeah Campus

Miami Dade College

Welcome to the third edition of Polygon, a multi disciplinary peer-reviewed journal of

the Arts & Sciences! In support of the Miami Dade College Learning Outcomes, one of

the core values of Hialeah Campus is to provide “learning experiences to facilitate the

acquisition of fundamental knowledge.” Polygon aims to share the knowledge and

attitudes of the complete “scholar" in hopes of better understanding the culturally

complex world in which we live. Professors Shakil, Bestard and Calderin are to be

commended for their leadership, hard work and collegiality in producing such a valuable

resource for the MDC community.

Ana María Bradley-Hess, Ph.D.

Academic and Student Dean

Miami Dade College – Hialeah Campus

1800 West 49 Street, Hialeah, Florida 33012

Telephone: 305-237-8712

Fax: 305-237-8717

Page 93: Polygon 2012

Comments About …

82

***********************************************************************

Dr. Caridad Castro, Chairperson

English & Communications, Humanities, Mathematics, Philosophy,

Social & Natural Sciences

Hialeah Campus

Miami Dade College

POLYGON continues to grow and to feature our local MDC scholars.

Thanks to you and your staff for providing them this opportunity.

Cary

Caridad Castro, J.D., Chairperson

English & Communications, Humanities, Mathematics, Philosophy,

Social & Natural Sciences

Miami Dade College – Hialeah Campus

1776 W. 49 Street, Hialeah, FL 33012

Phone: 305-237-8804

Fax: 305-237-8820

E-mail: [email protected]

***********************************************************************

Dr. Arturo Rodriguez

Associate Professor

Chemistry/Physics/Earth Sciences/Department

North Campus

Miami Dade College

I want to congratulate you and the rest of the colleagues who created the POLYGON that

is occupying an increasingly important place in the scholarly life of our College. Now,

the faculties from MDC have a place to publish their modest contributions.

arturo

Dr. Arturo Rodriguez

Associate Professor

Chemistry/Physics/Earth Sciences/Department

North Campus

Miami Dade College

11380 NW 27th Avenue

Miami, Florida 33167-3418

phone: 305 237 8095

fax: 305 237 1445

e-mail: [email protected]