Lesson 6

Division in Lizardland

Est. Class Sessions: 2

Summarizing the Lesson

Display the division sentence 15 ÷ 3 = 5. Have students write a division story and an accompanying picture to represent the division sentence. Students can refer to the Lizardland picture for ideas for their division stories.

Have volunteers read their division stories aloud and display their pictures. Have other students match the numbers in the story to the division sentence.

As a final step, have students write the name of the object each number in their division sentence represents. For example, 15 is the number of balloons; 3 is the number of children; and 5 is the number of balloons each child receives.

To conclude, ask:

X
  • Is 15 ÷ 3 the same as 15 ÷ 5? (No. There is no turn-around rule for division. 15 ÷ 3 = 5 and 15 ÷ 5 = 3.)
  • What are all the number sentences in this fact family? (15 ÷ 5 = 3, 15 ÷ 5 = 3, 3 × 5 = 15, and 5 × 3 = 15.)
  • How does knowing the multiplication sentences in the fact family help you solve the division facts? Give an example. (If I know 3 × 5 = 15, then I know 15 ÷ 3 = 5 and 15 ÷ 5 = 3.)
  • Make arrays with counters to show the number sentences in this fact family.
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