Lesson 11-5

LET'S BUILD Find Parts of 11, 12, and 13

For more help with this lesson, view the Visual Learning Animation or the Another Look Video.

MATH HELP AT HOME

Sample Additional Practice Exercise 1

Draw counters to show 11 and write an equation to match the picture. Tell how the picture and equation show 10 ones and some more ones.

A double 10 frame with 10 counters in the first frame and 1 counter in the second. The equation 11 = 10 + 1.

Draw 11 counters. Fill the first ten-frame with 10 of the counters. Then draw 1 more counter in the second ten-frame. So, 11 counters can be shown as 10 counters plus 1 more counter. Write the equation for this: $11 = 10 + 1$ .

HOME ACTIVITY

Make 11, 12, or 13

MATERIALS

Pencils

ACTIVITY

Have your child sort a group of 12 pencils into one group of 10 pencils and one group of 2 pencils. Discuss how many pencils are in each group and how many pencils there are in all. Repeat with 13 pencils and 11 pencils.