Strategy to Measure Area

Examples, solutions, and videos to help Grade 3 students learn how to model tiling with centimeter and inch unit squares as a strategy to measure area.

Common Core Standards: 3.MD.5, 3.MD.6, 3.MD.7

New York State Common Core Math Grade 3, Module 4, Lesson 3

Worksheets for Grade 3, Module 4, Lesson 3

Application Problem

Jace uses paper squares to create a rectangle. Clary cuts all of Jace’s squares in half to create triangles. She uses all the triangles to make a rectangle. There are 16 triangles in Clary’s rectangle. How many squares were in Jace’s shape?

Possible methods used to solve:
Dividing
Drawing a picture
Skip-counting by twos

Concept Development

Arrange tiles to make rectangles.

Show Step-by-step Solutions

Lesson 3 Homework

1. Each □ is 1 square unit. What is the area of each of the following rectangles?

3. Each □ is 1 square unit. Write the area of each rectangle. Then draw another rectangle with the same area in the space provided.

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