Lesson 11-2

LET'S BUILD Make 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 make 13 and write an equation to match the picture. Tell how the picture and the equation show 10 ones and some more ones. A double ten-frame with 10 red counters in the first ten frame. 3 more are in the second. 10 and 3 is 13.

There are 10 counters in the top ten-frame. Draw 3 more counters to make 13: $10 + 3 = 13$ . The picture and the equation show 10 ones and 3 more ones equal 13 ones.

HOME ACTIVITY

Ten Ones and Some More

MATERIALS

Pennies

ACTIVITY

Have your child use pennies to model and explain how to make 11, 12, and 13 with 10 ones and some more ones.