Page 17 - TG_G1_CH6_CHRIS

STEP BY STEP
TIME TO LEARN
1 less than 96 is 95.
Exercises 1 to 6 allow children to recognize the meaning of less and have the 1 less
I started at 96.
7
4
ability to count back by ones and tens. Introduce exercise 1 to children. Stress I wanted to subtract 11 1 12 2 13 3 14 15 5 16 6 17 18 8 19 9 10 20
the concept that 1 less is subtracting 1 or counting back by one. 1. I move one step 21 22 23 33 24 25 35 26 27 28 29 40
30
37
39
34
38
36
32
31
to the left to get the 41 42 43 44 45 46 47 48 49 50
number before it. 51 52 53 54 55 56 57 58 59 60
Ask: How many is 80 and 1 less? Move one step to the left and subtract one 10 less 61 71 62 63 64 65 66 67 78 79 70
68
69
80
74 75
77
76
72 73
from the ones place. 79. I started at 96. 81 82 83 84 85 86 87 88 89 90
92
96
91
98
94 95
99 100
93
97
I want to subtract 10. 101 102 103 104 105 106 107 108 109 110
I move back 10
Introduce exercise 4 to children. Stress the concept that 10 less is subtracting 10 spaces or move one 111 112 113 114 115 116 117 118 119 120
or counting back by ten. step up to get the last
ten.
1 less
Ask: How many is 118 and 10 less? Move one step up and subtract 1 from the 10 less than 96 is 86. 10 less
left
tens place. 108. STEP Write the missing number. up
BY
STEP
Another example: 1 79 1 less 80 4 108 10 less 118
After solving Step-by-Step practice ask: What is 10 less than 120? Have children
count back using a hundred chart, a number line, or the count back method. 2 30 1 less 31 5 94 10 less 104
This extra example allows children to use different strategies and tools to solve 3 99 1 less 100 6 56 10 less 66
the same problem.
274
MULTIPLE INTELLIGENCE ACTIVITY
Use the Multiple Intelligence Activity for this lesson to enrich and
engage the different learning styles of each child.
P R A C T I C E
A. Write 10 less and 10 more.
16
PR A C TI C E 2 1 56 66 76 5 6 60 26 36
80
70
44
34
24
34 34
Ask children to complete the practice exercises independently. Walk around 3 9 19 29 7 45 55 65
the class and monitor children progress. 34 34
4 31 41 51 8 29 39 49
Exercises A and B test the ability to count back by ones and tens to find one
less and ten less than a number. B. Write the numbers that are 10 less.
4 26
I got it 50% 8 14 36 37
If child needs help solving exercises, assist with the use of 18 47
manipulatives. Assign it to Reteach Practice Book for additional 39 49 20 10
support.
10 32
I got it 75% 0 22
If child correctly solves the exercises independently using
manipulatives, assign the Practice Book for independent
study. Help children solve the exercises independently using 275
manipulatives
I got it 100%
If child solves the exercises independently without the use of
manipulatives, assign the Enriched Practice Book for advanced
independent study.
408