Lesson 10-5

LET'S INVESTIGATE Count On

For more help with this lesson, view the Another Look Video.

MATH HELP AT HOME

Sample Additional Practice Exercise 1

There are 1 or more counters inside the jar. Count the counters, and then draw a circle around the numbers that tell how many counters there could be in all.

A jar next to 18 counters. The numbers 16, 17, 18, 19, and 20 are written. The numbers 19 and 20 are circled.></span></p> <p style= Count the counters. There are 18 counters. There are 1 or more counters inside the jar, so the total number of counters could be 19 or 20.

HOME ACTIVITY

Coin Counting

MATERIALS

Coins

ACTIVITY

Put 15 coins on a table. Say: I have some coins on the table. I am hiding 1 or more coins in my hand. How many coins could I have in all? 13, 14, 15, 16, or 17? Have your child count the coins on the table and then explain how he or she knows how many coins there could be in all.