Page 242 - NUMINO TG_2A
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15Counting in Groups Unit
d3 6 groups of 3 1d. This is an example of a class expressing
e2 3+3+3+3+3+3=18 equal groups in different sentences.
f6 How many groups are there? 6 groups.
9 groups of 2 How many marbles are there per group?
2+2+2+2+2+2+2+2+2=18 3 marbles.
So, how many groups of what are there?
4 groups of 6 6 groups of 3.
6+6+6+6=24 Let’s write 6 groups of 3 in various ways.
A1: 3 3 3 3 3 3 18.
A2: There are 3 marbles in each group.
A3: There are 6 equal groups.
A4: There are 18 marbles in total.
3. Check Point
Expressing how many groups of what in
addition sentences is a preparatory step to
learning repeated addition.
15. Count in Groups 139
2A Unit 15 225
d3 6 groups of 3 1d. This is an example of a class expressing
e2 3+3+3+3+3+3=18 equal groups in different sentences.
f6 How many groups are there? 6 groups.
9 groups of 2 How many marbles are there per group?
2+2+2+2+2+2+2+2+2=18 3 marbles.
So, how many groups of what are there?
4 groups of 6 6 groups of 3.
6+6+6+6=24 Let’s write 6 groups of 3 in various ways.
A1: 3 3 3 3 3 3 18.
A2: There are 3 marbles in each group.
A3: There are 6 equal groups.
A4: There are 18 marbles in total.
3. Check Point
Expressing how many groups of what in
addition sentences is a preparatory step to
learning repeated addition.
15. Count in Groups 139
2A Unit 15 225
