Lesson 12-3

LET'S BUILD Count by Ones and Tens to 50

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

Listen to these numbers: “twenty-six, twenty-seven, twenty-eight, twenty-nine.” Circle the numbers in the chart that you hear, and then tell what is repeated in each number.

A number chart from 1 to 30, with 10 numbers in each row. The numbers 26 to 29 are circled.

There is a pattern in the numbers twenty-six, twenty-seven, twenty-eight, and twenty-nine. They all include “twenty.” They are in the third row. Circle 26, 27, 28, and 29. The number 2 is repeated in each number.

HOME ACTIVITY

Count to 50

ACTIVITY

Tell your child a number under 50. Ask him or her to count from that number up to 50. Repeat with different numbers.