# Lesson 4 Area of Rectangles

Let’s find the area of more rectangles.

## Warm-up Which One Doesn’t Belong: Area and Arrays

Which one doesn’t belong?

## Activity 1 What Did I Create?

Can you and your partner draw the same rectangle without looking at each other’s drawing?

Partner A: Draw a rectangle on one of the grids provided. Describe it to your partner without telling them the total number of squares.

Partner B: Draw the rectangle your partner describes to you.

Place your two rectangles next to each other. Discuss: What is the same? What is different?

Switch roles and repeat.

## Activity 2 Find the Area

Find the area of each rectangle and include the units. Explain or show your reasoning.

## Practice Problem

## Problem 1

Find the area of the rectangle. Explain or show your reasoning.