Lesson: Area of Rectangles Mathematics • 3rd Grade

In this lesson, we will learn how to find the areas of rectangles on unit grids using multiplication and solve problems to find the areas of rectangles.

Lesson Plan

Students will be able to

find the area of rectangles using repeated addition or skip counting,
connect multiplication arrays to rectangles made up of unit squares,
use multiplication to find the area of a rectangle,
use the distributive property to find the area of a rectangle,
solve problems involving areas of rectangles.

Lesson Worksheet

Q1:

Adding the number of squares in each row is one way of finding the area of an object.

Find the area of the rectangle using multiplication.

Q2:

Elizabeth drew a rectangle that was 9 inches long and 3 inches wide. Find the area of the rectangle by skip counting.

Q3:

True or False: The area of a plane figure is the space around the outside.