Lesson 5 Represent Products as Areas

    • Let’s connect multiplication expressions to area. 

Warm-up How Many Do You See: One More

How many do you see? How do you see them?

  1. Groups of dots.
  2. 6 groups of 3 dots.
  3. Groups of dots.

Activity 1 Match Expressions and Areas

Your teacher has posted images of rectangles around the room. Match each expression with a rectangle that can represent it. Be prepared to explain your reasoning.

Activity 2 Create from Expressions

  1. The numbers in each expression represent the number of rows (or columns) in a rectangle and how many squares are in each row (or column).

    On the grid, draw each rectangle, label it with the numbers, and find its area.

    An empty grid.
  2. Explain why multiplying the numbers in each expression gives us the area of the rectangle.

Practice Problem

Problem 1

  1. Use the grid to create a rectangle whose area can be represented by .

    An empty grid.
  2. How does your rectangle represent the expression ?