Unit 1, Lesson 17, Grade 3 icon
Unit 1, Lesson 17

Model the relationship between multiplication and division

EngageNY 60 min(s)

In this lesson, students use number bonds and tape diagrams to aid the writing of related multiplication and division sentences. For example, they answer the question, "A classroom has 20 students, and 4 students are seated at each table. How many tables are in the classroom?" by drawing a tape diagram to show the unknown number of groups, and then writing the equations 20 ÷ 4 = ? and ? × 4 = 20. This lesson focuses on multiplication involving units of 4 in order to build fluency with those facts.

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