LESSON 1 Facts I Know: Multiplication and Division

Multiplication Facts I Know

Self-Check: Questions 1–4

The students in Mrs. Dewey's class have been practicing their multiplication facts one group at a time using Triangle Flash Cards. They circle the facts they know and can answer quickly on their Multiplication Facts I Know charts. Jerome looked at his chart to see which facts he still needs to practice.

1. Which facts does Jerome still need to learn?
2. Will knowing about turn-around facts help him learn any of these facts? If so, which ones?

Mrs. Dewey saw that Jerome still needs to learn 6 8. She asked the class to share strategies that will help Jerome with this fact.

Maya said, “I know 3  8 = 24. I just double 24 to get 6 8 = 48.”

Luis said, “I break it apart. I know 5  8 = 40; 6  8 will be one more 8 than 40, or 48.”

1. Show or tell how to use Maya's doubling strategy to find 6  7.
2. Show or tell how to use Luis's break-apart strategy to find 6  7.

1. Look at your Multiplication Facts I Know chart. Make a list of the facts you need to learn.
2. Make new Triangle Flash Cards for the facts on your list using the Blank Triangle Flash Cards in the Student Activity Book. Follow the example for 6 8.
4. Choose one fact from your list. Work with a partner to find a strategy that will help you remember that fact. Show or tell your strategy.

Complete the Picturing Fact Families page in the Student Activity Book.