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Brain-Inspired Math

Grade 1, Volume 2

A new technique for teaching mathematics

and boosting a child's math skills.

Margery J. Doyle Cognitive Systems Scientist and Engineer

Cognitive Architects and Engineers

Dr. Ahmed A. Moustafa

Senior Lecturer in Cognitive and Behavioral Neuroscience,

University of Western Sydney

Dr. Mustafa Fouad Ebaid

Math Curriculum Development Adviser

Mohamed Ibrahim Khadr

Math Curriculum Developer

ii

Copyright © 2015 by Alpha Smart Brain

All rights reserved. No part of this publication may be reproduced,

distributed, or transmitted in any form or by any means, including

photocopying, recording, or other electronic or mechanical methods,

without the prior written permission from Alpha Smart Brain.

ISBN

978-0-9963035-7-6

iii

Introduction

There are two different systems for learning and solving

mathematical problems, the visual-spatial and the formal

language systems. Precisely because, the visual-spatial

system responds so well to moving stimuli, it helps us

recognize large animals moving across open areas so this

system evolved earlier than did our formal language

system. This is also why, to this day, it is thought that the

visual-spatial system matures faster during the child’s

development than does the formal language system.

In addition, the spatial method of learning, which relies on

forming mental models and images to understand

mathematics, is similar to the type we use in our everyday

interactions with the world; rendering this method a more

intuitive way to learn math. However, our formal language

system is slower, and more difficult to use, but as it

matures, it enables the learning of more complex math

problems.

We argue that, for children, learning mathematics is more

efficient when it relies, more on the visual-spatial system

rather than on an immature formal language system in

the brain. In fact, relying heavily on the formal language

system can cause mathematics anxiety when learning

mathematics, which in turn, decrease a student's ability to

learn mathematics effectively.

iv

Mathematics anxiety has been defined as feelings of tension

that interfere with the manipulation of numbers and the

solving of mathematical problems in a wide variety of

ordinary life and academic situations. In addition,

dyscalculia is but one disorder thought to impede on a

child's ability to learn mathematics and to manipulate

symbols when working on math problems. Math anxiety can

increase the effects of these disorders and can cause

children to forget what they learn, often leading to a loss in

self-confidence. However, anxiety is but one factor

underlying inefficient learning of mathematics in schools

around the world the other is the way in which mathematics

is taught to young children.

The problem is most mathematics curricula teach the

subject matter using mostly formal language, making the

process inversely beneficial for children training to learn

mathematics at such a young age, when their formal

language systems have yet to mature.

v

The Authors

Margery J. Doyle Margery is a founder or at Cognitive

System Architects and Engineer Research Consultant and

serves at AFRL WPAFB, OH as a Cognitive Systems

Research Scientist and Engineer with L3 Communications

Link Simulation and Training supporting the Air Force

Research Lab 711 HPW/RHA Warfighter Readiness Research

Division at Wright-Patterson Air Force Base, OH. Margery

leads the Not-So-Grand-Challenge to support integration,

validation, and use of cognitive, behavior, and

computationally based models/agents within a modular

architecture for use in Live Virtual Constructive Distributed

Mission Operations training environments.

She earned her M.A. in Experimental Psychology with a

certificate in Cognitive Psychology from the University of

West Florida in 2007.

In addition, Margery completed the research and study

toward completion of a PhD in Cognitive Science at the

University of Louisiana-Lafayette Recently she co-edited a

special edition of Cognitive Systems Research focusing on

the properties of distributed agency, stigmergy, and

emergence in complex adaptive systems.

vi

Dr. Ahmed A. Moustafa, PhD.

Ahmed is currently a Senior Lecturer (Associate Professor)

in Cognitive and Behavioural Neuroscience at Marcs

Institute for Brain and Behavior and the School of Social

Sciences and Psychology, University of Western Sydney.

Ahmed graduated from Cairo University in Egypt with an

undergraduate degree in mathematics and computer

science. After that, Ahmed received his PhD from the

Institute of Cognitive Science, University of Louisiana-

Lafayette. His PhD work consisted of building computational

models of brain functions and disorders. Ahmed then took a

postdoctoral research position at University of Arizona.

Following that, Ahmed served as a Research Scientist for

the Center for Molecular and Behavioral Neuroscience at

Rutgers University where he worked on computational and

neuropsychological studies of schizophrenia, Parkinson’s

disease, PTSD, and Depression.

vii

To his credit, Ahmed has published over 50 papers in high-

ranking journals including Science, Proceedings of the

National Academy of Science, Brain, Journal of

Neuroscience, among others. Currently, Ahmed works on

Computational and Experimental Neuroscience research,

focusing on modeling brain disorders.

Dr. Mustafa Fouad Ebaid

Math Curriculum Development Adviser

Mohamed Ibrahim Khadr

Math curriculum Developer

viii

What we think is wrong with the current mathematics

education system in elementary schools in the United

States?

1- The current mathematics education system in elementary

schools in the United States is relying heavily on the use of

formal language.

2- The current mathematics curricula teach the subject

matter using mostly formal language, making the process

inversely beneficial for children training to learn

mathematics at such a young age, when their formal

language systems have yet to mature.

3- Relying heavily on the formal language system can cause

mathematics anxiety when learning mathematics, which in

turn, decrease a student's ability to learn mathematics

effectively.

ix

How to easily teach math to first graders using brain-

inspired math curriculum?

1- Because visual-spatial capabilities are well-developed

and mature at a young age, a math curriculum in the form

of tables conveying the concepts allows the students an

opportunity to easily learn mathematical concepts.

2- Using the visual-spatial x y z system with first grade

students will help students to form abstract concepts and

master math so easily.

3- Using Brain Training software ( Alpha Smart Math

Booster ), to build strong mathematics processing

networks and processes in the student's brain.

4- Using Brain Training software should be done after the

student finishes studying Volume 1. The student should use

this software twice every week, every time about 15

minutes.

5- Explaining tables and mathematical concepts to the

students should be conducted by using informal language

and visual-spatial methods students more readily

understand.

6- Any formal language vocabulary used should be kept to

a minimum, and should be easy to understand.

x

7- Using concrete materials is very important for visualizing

the concepts to the students, so the students can visualize

the concept easily in their heads.

8- The teacher should avoid asking students difficult

questions, especially the questions that contain heavy

language. The difficult questions in that young age can

cause mathematics anxiety.

9- When the teacher explains a new mathematical concept

to the students, the teacher should explain the concept

using as few words as possible. After the students

understand the concept deeply, they should complete the

tables by themselves, this will help in storing information in

the brain effectively.

10- After building the mathematics area in the student's

brain, we introduce word problems in Volume 2.

11- Because formal language systems of first grade

students have yet to mature, so teachers should explain

word problems to students using informal language and

visual-spatial methods students more readily understand.

xi

Table of Contents

Unit 1 .............................................. 1

Unit 2 .............................................. 21

Unit 3 .............................................. 33

Unit 4 .............................................. 38

Unit 5 .............................................. 46

Unit 6 .............................................. 51

Teacher's

Guide .............................................. 81

Volume 3

Contents .............................................. 83

xii

Suggested Timeline

Volume 1 Volume 2 Volume 3

20 weeks 8 weeks 8 weeks

Note: Students should use Brain Training software

(Alpha Smart Math Booster) after finishing studying

Volume 1. The student should use this software twice every

week, every time about 15 minutes.

1

Lesson 1 Worksheet 1 Unit 1

x = 2 3 0 1 2 0 1 4 0 1

x = 3 5 0 1 4 0 1 3 0 1

x = 4 4 0 1 5 0 1 6 0 1

x = 5 7 0 1 6 0 1 5 0 1

x = 6 7 0 1 6 0 1 8 0 1

x = 7 7 0 1 8 0 1 9 0 1

x = 8 9 0 1 8 0 1 10 0 1

2

Lesson 1 Worksheet 2 Unit 1

z = 7 + 1 1 0 7 1 0 8 1 0 9

z = 8 + 1 1 0 10 1 0 8 1 0 9

z = 9 + 1 1 0 10 1 0 9 1 0 11

z = 10 + 1 1 0 12 1 0 10 1 0 11

z = 11 + 1 1 0 11 1 0 12 1 0 13

z = 12 + 1 1 0 14 1 0 12 1 0 13

z = 13 + 1 1 0 14 1 0 13 1 0 15

3

Lesson 1 Worksheet 3 Unit 1

x + y = z 7 1 9 7 1 8 7 1 10

x + y = z 8 1 11 8 1 10 8 1 9

x + y = z 9 1 11 9 1 10 9 1 12

x + y = z 10 1 11 10 1 12 10 1 13

x + y = z 11 1 14 11 1 13 11 1 12

x + y = z 12 1 14 12 1 13 12 1 15

x + y = z 13 1 14 13 1 15 13 1 16

4

Lesson 2 Worksheet 4 Unit 1

y = 2 1 4 0 1 3 0 1 2 0

y = 3 1 3 0 1 4 0 1 5 0

y = 4 1 6 0 1 5 0 1 4 0

y = 5 1 6 0 1 5 0 1 7 0

y = 6 1 6 0 1 7 0 1 8 0

y = 7 1 9 0 1 8 0 1 7 0

y = 8 1 9 0 1 8 0 1 10 0

5

Lesson 2 Worksheet 5 Unit 1

x - y = z 6 1 3 6 1 4 6 1 5

x - y = z 7 1 5 7 1 6 7 1 4

x - y = z 8 1 5 8 1 6 8 1 7

x - y = z 9 1 8 9 1 7 9 1 6

x - y = z 10 1 7 10 1 8 10 1 9

x - y = z 11 1 9 11 1 10 11 1 8

x - y = z 12 1 9 12 1 10 12 1 11

6

Lesson 2 Worksheet 6 Unit 1

x = 3 + 2 4 0 1 5 0 1 3 0 1

x = 4 + 2 4 0 1 5 0 1 6 0 1

x = 5 + 2 7 0 1 6 0 1 5 0 1

x = 6 + 2 6 0 1 7 0 1 8 0 1

x = 7 + 2 8 0 1 9 0 1 7 0 1

x = 8 + 2 10 0 1 9 0 1 8 0 1

x = 9 + 2 10 0 1 11 0 1 9 0 1

7

Lesson 3 Worksheet 7 Unit 1

z = 10 + 2 1 0 10 1 0 11 1 0 12

z = 11 + 2 1 0 12 1 0 13 1 0 11

z = 12 + 2 1 0 12 1 0 13 1 0 14

z = 13 + 2 1 0 15 1 0 14 1 0 13

z = 14 + 2 1 0 14 1 0 15 1 0 16

z = 15 + 2 1 0 16 1 0 17 1 0 15

z = 16 + 2 1 0 16 1 0 17 1 0 18

8

Lesson 3 Worksheet 8 Unit 1

x + y = z 6 2 9 6 2 8 6 2 10

x + y = z 7 2 11 7 2 10 7 2 9

x + y = z 8 2 11 8 2 10 8 2 12

x + y = z 9 2 11 9 2 12 9 2 13

x + y = z 10 2 14 10 2 13 10 2 12

x + y = z 11 2 14 11 2 13 11 2 15

x + y = z 12 2 16 12 2 15 12 2 14

9

Lesson 3 Worksheet 9 Unit 1

x - y = z 8 2 4 8 2 5 8 2 6

x - y = z 9 2 6 9 2 7 9 2 5

x - y = z 10 2 6 10 2 7 10 2 8

x - y = z 11 2 9 11 2 8 11 2 7

x - y = z 12 2 8 12 2 9 12 2 10

x - y = z 13 2 10 13 2 11 13 2 9

x - y = z 14 2 10 14 2 11 14 2 12

10

Lesson 3 Worksheet 10 Unit 1

z = 11 + 10 1 0 22 1 0 21 1 0 23

z = 12 + 10 1 0 24 1 0 23 1 0 22

z = 13 + 10 1 0 23 1 0 24 1 0 25

z = 14 + 10 1 0 26 1 0 25 1 0 24

z = 15 + 10 1 0 25 1 0 26 1 0 27

z = 16 + 10 1 0 27 1 0 26 1 0 28

z = 17 + 10 1 0 29 1 0 28 1 0 27

11

Lesson 4 Worksheet 11 Unit 1

x < 50 53 0 1 2 0 1 54 0 1

x < 50 55 0 1 56 0 1 3 0 1

x < 50 4 0 1 57 0 1 58 0 1

x < 50 60 0 1 59 0 1 5 0 1

x < 50 6 0 1 62 0 1 61 0 1

x < 50 64 0 1 63 0 1 7 0 1

x < 50 8 0 1 66 0 1 65 0 1

12

Lesson 4 Worksheet 12 Unit 1

x > 50 12 0 1 11 0 1 60 0 1

x > 50 61 0 1 14 0 1 13 0 1

x > 50 15 0 1 16 0 1 62 0 1

x > 50 17 0 1 63 0 1 18 0 1

x > 50 19 0 1 20 0 1 64 0 1

x > 50 65 0 1 21 0 1 22 0 1

x > 50 24 0 1 66 0 1 23 0 1

13

Lesson 5 Worksheet 13 Unit 1

x = y 2 3 0 2 2 0 2 4 0

x = y 3 5 0 3 4 0 3 3 0

x = y 4 5 0 4 4 0 4 6 0

x = y 5 7 0 5 6 0 5 5 0

x = y 6 6 0 6 7 0 6 8 0

x = y 7 8 0 7 7 0 7 9 0

x = y 8 10 0 8 9 0 8 8 0

14

Lesson 5 Worksheet 14 Unit 1

x = z 5 0 7 5 0 6 5 0 5

x = z 6 0 7 6 0 6 6 0 8

x = z 7 0 9 7 0 8 7 0 7

x = z 8 0 8 8 0 9 8 0 10

x = z 9 0 11 9 0 10 9 0 9

x = z 10 0 11 10 0 10 10 0 12

x = z 11 0 11 11 0 12 11 0 13

15

Lesson 6 Worksheet 15 Unit 1

x = 2 and y = 3 2 4 6 2 3 5 2 5 7

x = 3 and y = 4 3 6 8 3 5 7 3 4 6

x = 4 and y = 5 4 5 7 4 6 8 4 7 9

x = 5 and y = 6 5 8 10 5 7 9 5 6 8

x = 6 and y = 7 6 8 10 6 7 9 6 9 11

x = 7 and y = 8 7 8 10 7 9 11 7 10 12

x = 8 and y = 9 8 10 12 8 9 11 8 11 13

16

Lesson 6 Worksheet 16 Unit 1

x = 6 and z = 8 6 0 10 6 0 9 6 0 8

x = 7 and z = 9 7 0 9 7 0 10 7 0 11

x = 8 and z = 10 8 0 11 8 0 10 8 0 12

x = 9 and z = 11 9 0 13 9 0 12 9 0 11

x = 10 and z = 12 10 0 12 10 0 13 10 0 14

x = 11 and z = 13 11 0 15 11 0 14 11 0 13

x = 12 and z = 14 12 0 15 12 0 14 12 0 16

17

Lesson 7 Worksheet 17 Unit 1

x is an even number. 11 0 1 12 0 1 13 0 1

x is an even number. 14 0 1 13 0 1 15 0 1

x is an even number. 17 0 1 15 0 1 16 0 1

x is an even number. 17 0 1 18 0 1 19 0 1

x is an even number. 21 0 1 19 0 1 20 0 1

x is an even number. 22 0 1 21 0 1 23 0 1

x is an even number. 23 0 1 24 0 1 25 0 1

18

Lesson 7 Worksheet 18 Unit 1

x is an odd number. 34 0 1 32 0 1 31 0 1

x is an odd number. 34 0 1 33 0 1 36 0 1

x is an odd number. 38 0 1 36 0 1 35 0 1

x is an odd number. 38 0 1 37 0 1 40 0 1

x is an odd number. 39 0 1 40 0 1 42 0 1

x is an odd number. 44 0 1 42 0 1 41 0 1

x is an odd number. 44 0 1 43 0 1 46 0 1

19

Lesson 8 Worksheet 19 Unit 1

x, y, and z are even numbers. 11 13 15 12 14 16

x, y, and z are even numbers. 13 15 17 14 16 18

x, y, and z are even numbers. 16 18 20 15 17 19

x, y, and z are even numbers. 17 19 21 18 20 22

x, y, and z are even numbers. 19 21 23 20 22 24

x, y, and z are even numbers. 22 24 26 21 23 25

x, y, and z are even numbers. 23 25 27 24 26 28

20

Lesson 8 Worksheet 20 Unit 1

x, y, and z are odd numbers. 32 34 36 31 33 35

x, y, and z are odd numbers. 33 35 37 34 36 38

x, y, and z are odd numbers. 36 38 40 35 37 39

x, y, and z are odd numbers. 38 40 42 37 39 41

x, y, and z are odd numbers. 39 41 43 40 42 44

x, y, and z are odd numbers. 41 43 45 42 44 46

x, y, and z are odd numbers. 44 46 48 43 45 47

21

Lesson 9 Worksheet 21 Unit 2

The Next Number to 7 9 6 8

The Next Number to 8 7 9 10

The Next Number to 9 10 8 11

The Next Number to 10 9 11 12

The Next Number to 11 13 10 12

The Next Number to 12 13 11 14

The Next Number to 13 12 14 15

22

Lesson 9 Worksheet 22 Unit 2

The Previous Number to 14 16 15 13

The Previous Number to 15 14 16 17

The Previous Number to 16 18 17 15

The Previous Number to 17 18 16 19

The Previous Number to 18 20 19 17

The Previous Number to 19 18 20 21

The Previous Number to 20 21 19 22

23

Lesson 9 Worksheet 23 Unit 2

Number greater than 50 11 10 60

Number greater than 50 13 61 12

Number greater than 50 14 15 62

Number greater than 50 63 16 17

Number greater than 50 19 64 18

Number greater than 50 65 21 20

Number greater than 50 22 23 66

24

Lesson 10 Worksheet 24 Unit 2

Number less than 50 52 51 11

Number less than 50 12 54 53

Number less than 50 56 13 55

Number less than 50 58 57 14

Number less than 50 59 15 60

Number less than 50 16 61 62

Number less than 50 64 63 17

25

Lesson 10 Worksheet 25 Unit 2

12 ....... 22 > < =

23 ....... 13 = < >

14 ....... 14 = < >

15 ....... 25 > < =

16 ....... 26 = > <

27 ....... 17 > < =

18 ....... 28 = > <

26

Lesson 10 Worksheet 26 Unit 2

The Largest Number 27 47 28

The Largest Number 29 28 48

The Largest Number 49 29 30

The Largest Number 31 30 50

The Largest Number 31 51 32

The Largest Number 33 32 52

The Largest Number 53 33 34

27

Lesson 11 Worksheet 27 Unit 2

The Smallest Number 69 68 48

The Smallest Number 69 49 70

The Smallest Number 71 70 50

The Smallest Number 51 71 72

The Smallest Number 72 52 73

The Smallest Number 74 73 53

The Smallest Number 54 74 75

28

Lesson 11 Worksheet 28 Unit 2

Number close to 10 23 13 33

Number close to 11 34 24 14

Number close to 12 15 25 35

Number close to 13 36 26 16

Number close to 14 27 17 37

Number close to 15 38 28 18

Number close to 16 29 19 39

29

Lesson 11 Worksheet 29 Unit 2

The number has 3 ones. 25 24 23

The number has 4 ones. 25 24 26

The number has 5 ones. 26 25 27

The number has 6 ones. 26 27 28

The number has 7 ones. 29 28 27

The number has 8 ones. 30 29 28

The number has 9 ones. 30 29 31

30

Lesson 12 Worksheet 30 Unit 2

Even Number 13 14 15

Even Number 17 15 16

Even Number 18 17 19

Even Number 21 19 20

Even Number 21 22 23

Even Number 24 23 25

Even Number 27 25 26

31

Lesson 12 Worksheet 31 Unit 2

Odd Number 34 32 31

Odd Number 33 34 36

Odd Number 36 35 38

Odd Number 40 38 37

Odd Number 40 39 42

Odd Number 41 42 44

Odd Number 44 43 46

32

Lesson 12 Worksheet 32 Unit 2

11 14 13 16

12 14 15 17

13 18 16 15

14 17 16 19

15 17 18 20

16 19 18 21

17 22 20 19

33

Lesson 13 Worksheet 33 Unit 3

3 5 7 9 .... 13 12 11

4 6 8 10 .... 11 12 14

5 7 9 11 .... 13 14 15

6 8 10 12 .... 13 14 16

7 9 11 13 .... 17 16 15

8 10 12 14 .... 15 16 18

9 11 13 15 .... 17 18 19

34

Lesson 13 Worksheet 34 Unit 3

6 9 12 15 .... 20 19 18

7 10 13 16 .... 19 18 21

8 11 14 17 .... 22 21 20

9 12 15 18 .... 20 21 23

10 13 16 19 .... 22 23 24

11 14 17 20 .... 25 22 23

12 15 18 21 .... 25 24 26

35

Lesson 14 Worksheet 35 Unit 3

5 9 13 17 .... 22 21 23

6 10 14 18 .... 24 21 22

7 11 15 19 .... 23 24 25

8 12 16 20 .... 23 24 26

9 13 17 21 .... 27 26 25

10 14 18 22 .... 26 25 28

11 15 19 23 .... 29 28 27

36

Lesson 14 Worksheet 36 Unit 3

7 12 17 22 .... 29 26 27

8 13 18 23 .... 28 29 30

9 14 19 24 .... 28 29 31

10 15 20 25 .... 32 31 30

11 16 21 26 .... 31 30 33

12 17 22 27 .... 34 33 32

13 18 23 28 .... 32 33 35

37

Lesson 14 Worksheet 37 Unit 3

12 22 32 42 .... 54 51 52

13 23 33 43 .... 53 54 55

14 24 34 44 .... 53 54 56

15 25 35 45 .... 57 56 55

16 26 36 46 .... 56 55 58

17 27 37 47 .... 58 57 59

18 28 38 48 .... 60 57 58

38

Lesson 15 Worksheet 38 Unit 4

11 = ? + 1 2 1 10

12 = ? + 2 1 10 2

13 = ? + 3 10 1 2

25 = ? + 5 3 2 20

26 = ? + 6 20 2 3

35 = ? + 5 3 30 4

36 = ? + 6 4 3 30

39

Lesson 15 Worksheet 39 Unit 4

35 + 16 = ? 52 51 53

36 + 17 = ? 53 54 55

37 + 18 = ? 57 56 55

38 + 19 = ? 58 57 59

39 + 20 = ? 61 60 59

40 + 21 = ? 61 62 63

41 + 22 = ? 65 64 63

40

Lesson 16 Worksheet 40 Unit 4

10 + ? = 12 3 2 4

11 + ? = 14 5 4 3

12 + ? = 16 4 5 6

13 + ? = 18 7 6 5

14 + ? = 20 7 6 8

15 + ? = 22 7 8 3

16 + ? = 24 6 7 8

41

Lesson 16 Worksheet 41 Unit 4

? + 12 = 15 5 4 3

? + 13 = 17 5 4 6

? + 14 = 19 5 6 7

? + 15 = 21 7 6 8

? + 16 = 23 9 8 7

? + 17 = 25 8 9 10

? + 18 = 27 10 9 8

42

Lesson 17 Worksheet 42 Unit 4

x + 12 = 15 x = 5 x = 4 x = 3

x + 13 = 17 x = 5 x = 4 x = 6

x + 14 = 19 x = 5 x = 6 x = 7

x + 15 = 21 x = 7 x = 6 x = 8

x + 16 = 23 x = 8 x = 7 x = 9

x + 17 = 25 x = 8 x = 9 x = 10

x + 18 = 27 x = 11 x = 10 x = 9

43

Lesson 18 Worksheet 43 Unit 4

9 - 2 = ? 5 6 7

10 - 2 = ? 8 7 6

11 - 2 = ? 7 9 8

15 - 12 = ? 5 4 3

16 - 12 = ? 2 4 3

17 - 12 = ? 3 5 4

18 - 12 = ? 4 5 6

44

Lesson 18 Worksheet 44 Unit 4

99 - 12 = ? 86 87 85

99 - 13 = ? 84 85 86

99 - 14 = ? 85 84 83

99 - 15 = ? 82 83 84

99 - 16 = ? 82 83 81

99 - 17 = ? 82 81 80

99 - 18 = ? 79 80 81

45

Lesson 19 Worksheet 45 Unit 4

10 - ? = 8 3 2 4

11 - ? = 8 2 4 3

12 - ? = 8 4 3 2

13 - ? = 9 2 3 4

14 - ? = 9 3 5 4

15 - ? = 9 6 5 4

16 - ? = 9 5 6 7

46

Lesson 20 Worksheet 46 Unit 5

x + y = z

x y z

3 2 ?

4 2 ?

5 2 ?

6 2 ?

7 2 ?

8 2 ?

47

Lesson 20 Worksheet 47 Unit 5

x + y = z

x y z

4 ? 7

5 ? 8

6 ? 9

7 ? 10

8 ? 11

9 ? 12

48

Lesson 20 Worksheet 48 Unit 5

x + y = z

x y z

? 5 9

? 6 10

? 7 11

? 8 12

? 9 13

? 10 14

49

Lesson 21 Worksheet 49 Unit 5

x - y = z

x y z

9 5 ?

10 6 ?

11 7 ?

12 8 ?

13 9 ?

14 10 ?

50

Lesson 21 Worksheet 50 Unit 5

x - y = z

x y z

10 ? 5

11 ? 6

12 ? 7

13 ? 8

14 ? 9

15 ? 10

51

Lesson 22 Worksheet 51 Unit 6

9 red marbles and 5 green marbles are in the basket.

How many marbles are in the basket?

x + y = z

x y z

9 5 ?

52

Lesson 23 Worksheet 52 Unit 6

8 small marbles and 5 big marbles are in the basket.

How many marbles are in the basket?

x + y = z

x y z

8 5 ?

53

Lesson 23 Worksheet 53 Unit 6

John has 12 red marbles and 4 green marbles. How

many marbles does John have in all?

x + y = z

x y z

12 4 ?

54

Lesson 24 Worksheet 54 Unit 6

There are 12 girls and 10 boys in a class. How many

students are in the class in all?

x + y = z

x y z

12 10 ?

55

Lesson 24 Worksheet 55 Unit 6

Mary has 9 marbles and Sophia has 5 marbles. How

many marbles do they have altogether?

x + y = z

x y z

9 5 ?

56

Lesson 25 Worksheet 56 Unit 6

There are 10 children sitting on the rug and 7

children standing. How many children are there in

all?

x + y = z

x y z

10 7 ?

57

Lesson 25 Worksheet 57 Unit 6

9 oranges are in the basket. 5 more oranges are put in

the basket. How many oranges are in the basket

now?

x + y = z

x y z

9 5 ?

58

Lesson 26 Worksheet 58 Unit 6

John has a dog and a bird. How many legs in all?

x + y = z

x y z

4 2 ?

59

Lesson 26 Worksheet 59 Unit 6

Sophia has a dog and a cat. How many legs in all?

x + y = z

x y z

4 4 ?

60

Lesson 26 Worksheet 60 Unit 6

Olivia has 2 cats. How many legs in all?

x + y = z

x y z

4 4 ?

61

Lesson 27 Worksheet 61 Unit 6

15 marbles are in the basket. 10 are red and the rest

are green. How many marbles are green?

x + y = z

x y z

10 ? 15

62

Lesson 27 Worksheet 62 Unit 6

12 oranges were in the basket. More oranges were

added to the basket. Now there are 17 oranges in the

basket. How many oranges were added to the

basket?

x + y = z

x y z

12 ? 17

63

Lesson 28 Worksheet 63 Unit 6

Olivia and Lucy pick 15 flowers. Olivia picks 9

flowers. How many flowers does Lucy pick?

x + y = z

x y z

9 ? 15

64

Lesson 29 Worksheet 64 Unit 6

Some oranges were in the basket. 14 more oranges

were added to the basket. Now there are 19 oranges

in the basket. How many oranges were in the basket

to start with?

x + y = z

x y z

? 14 19

65

Lesson 30 Worksheet 65 Unit 6

Mary had some eggs in the fridge. She bought 10

more eggs. Now, she has 15 eggs in all. How many

eggs did Mary have in the fridge at first?

x + y = z

x y z

? 10 15

66

Lesson 30 Worksheet 66 Unit 6

John has some books. Toni has 11 books. John and

Toni have 15 books in all. How many books does

John have?

x + y = z

x y z

? 11 15

67

Lesson 31 Worksheet 67 Unit 6

15 apples are in the basket. 10 apples are taken from

the basket. How many apples are in the basket now?

x - y = z

x y z

15 10 ?

68

Lesson 32 Worksheet 68 Unit 6

Sophia has $12. She spends $8. How much money

does she have now?

x - y = z

x y z

12 8 ?

69

Lesson 32 Worksheet 69 Unit 6

Jim has 19 books. He sold 14 books. How many

books does he have left?

x - y = z

x y z

19 14 ?

70

Lesson 33 Worksheet 70 Unit 6

John had 14 balloons at his birthday party. He gave 9

balloons to his friends. How many balloons did he

have left?

x - y = z

x y z

14 9 ?

71

Lesson 33 Worksheet 71 Unit 6

Sophia sees 9 birds in the tree. 5 birds fly away. How

many birds are still in the tree?

x - y = z

x y z

9 5 ?

72

Lesson 34 Worksheet 72 Unit 6

John has 15 marbles. William has 10 marbles. How

many more marbles does John have than William?

x - y = z

x y z

15 10 ?

73

Lesson 34 Worksheet 73 Unit 6

Sophia has 15 books. Mary has 12 books. How many

fewer books does Mary have than Sophia?

x - y = z

x y z

15 12 ?

74

Lesson 35 Worksheet 74 Unit 6

12 apples were in the basket. Some apples were

taken from the basket. Now there are 8 apples in the

basket. How many apples were taken from the

basket?

x - y = z

x y z

12 ? 8

75

Lesson 36 Worksheet 75 Unit 6

Jordan has 15 marbles. He gave some to William.

Now, he has 10 marbles left. How many marbles did

he give to William?

x - y = z

x y z

15 ? 10

76

Lesson 36 Worksheet 76 Unit 6

Jim has 15 books. He sold some books. Now, he has

11 books. How many books did he sell?

x - y = z

x y z

15 ? 11

77

Lesson 37 Worksheet 77 Unit 6

Jim has 7 more marbles than Jordan. Jim has 10

marbles. How many marbles does Jordan have?

x - y = z

x y z

10 ? 7

78

Lesson 37 Worksheet 78 Unit 6

William has 8 fewer marbles than Michael. Michael

has 12 marbles. How many marbles does William

have?

x - y = z

x y z

12 ? 8

79

Lesson 38 Worksheet 79 Unit 6

Jordan has 6 red marbles, 4 blue marbles, and 7

green marbles. How many marbles does Jordan

have?

x + y + z

x y z x + y + z

6 4 7 ?

80

Lesson 38 Worksheet 80 Unit 6

Sophia went to the store. She bought 8 bananas, 2

apples, and 5 oranges. How many pieces of fruit did

she buy in all?

x + y + z

x y z x + y + z

8 2 5 ?

81

A guide for teachers and parents.

...................................................

Unit 1 objectives:

After completing the unit, the student will be expected to:

1- Use the visual-spatial x y z system.

2- Solve Worksheets 1 - 20 ( homework ).

......................................................................................

Unit 2 objectives:

After completing the unit, the student will be expected to:

1- Use verbal condition.

2- Solve Worksheets 21 - 32 ( homework ).

......................................................................................

Unit 3 objectives:

After completing the unit, the student will be expected to:

1- Find the missing number in increasing sequences.

2- Solve Worksheets 33 - 37 ( homework ).

82

Unit 4 objectives:

After completing the unit, the student will be expected to:

1- Find the unknown part in addition equations.

2- Find the unknown part in subtraction equations.

3- Solve Worksheets 38 - 45 ( homework ).

......................................................................................

Unit 5 objectives:

After completing the unit, the student will be expected to:

1- Use the visual-spatial x y z system.

2- Solve Worksheets 46 - 50 ( homework ).

......................................................................................

Unit 6 objectives:

After completing the unit, the student will be expected to:

1- Solve word problems by using the visual-spatial x y z

system.

2- Solve Worksheets 51 - 80 ( homework ).

83

Volume 3 Contents

Unit 1: Geometry

Unit 2: Fractions

Unit 3: Measurement

Unit 4: Money

Unit 5: Time

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