grade 1 math volume 2 en
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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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