Lesson: Area: Standard Units Mathematics • 3rd Grade

In this lesson, we will learn how to count unit squares to measure the areas of rectilinear shapes in square centimeters, square meters, square inches, and square feet.

Lesson Plan

Students will be able to

count whole and half squares to find the area of a shape given the measure of the unit square,
use the notation cm², m², ft², and in² for these units,
compare the areas of shapes measured in the same units.

Sample Question Videos

01:07

Lesson Worksheet

Q1:

Which of the following is true for the shape shown, where 1 square equals 1 cm²?

Q2:

Find the area of the rectangle shown if 1 square equals 1 in².

Q3:

Find the area of the given shape if 1 square equals 1 ft².