Page 239 - NUMINO TG_2A

Activity 2 Equal Groups

jOb ective Learn how to use equal groups and skip-count.

1. Textbook Instructions Activity 2 Equal Groups

After making equal groups in various ways, 1 Skip-count by making equal groups.
explain how to skip-count.
a
1a. Have students make equal groups like the
following illustration and skip-count by writing 30
the number over it. b

10 20 30 45

1b. Guide students to solve problems in the c
following order. 36

Have students make 4 equal groups of 10 136
like 1.a. Here, students can figure out that
there are 5 circles left over and that they
cannot make equal groups of 10.
Guide students to make 9 equal groups by
grouping by 5, which is half of 10.

5 10 15 20 25 30 35 40 45

1c. If students have a difficult time solving the
problem, the instructor can draw an
illustration such as the following for guidance.

6

2. Build Understanding

Different ways to make equal groups 1c. Have students make equal groups of 2, 3, 4, 6, 9,
1b. Have students make equal groups of 3, 5, 9, 12, and 18.
and 15. Example: Make 4 groups of 9.
Example: Make 5 groups of 9.

222 NUMINO Teacher s Guide