## Lesson: Relating Multiplication and Division

Developing the Concept

In this lesson, students use arrays to explore the relationship between multiplication and division.

**Materials:** 24 counters for each student or pair of students

**Preparation:** Distribute counters to students. Write **3 x ? = 15** on the board and label the factors and product.

factor | factor | product | ||

3 |
x | ? |
= |
15 |

**Prerequisite Skills and Background:** Students should know how to model multiplication by using arrays.

**Wrap-Up and Assessment Hints**

Have students make an array with 24 counters and write two multiplication sentences and two division sentences that describe the array. Check their arrays and have them read their number sentences aloud.