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

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Lesson Plans and Worksheets for Grade 3

Lesson Plans and Worksheets for all Grades

More Lessons for Grade 3

Common Core For Grade 3

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

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.

Rotate to landscape screen format on a mobile phone or small tablet to use the **Mathway** widget, a free math problem solver that **answers your questions with step-by-step explanations**.

You can use the free Mathway calculator and problem solver below to practice Algebra or other math topics. Try the given examples, or type in your own problem and check your answer with the step-by-step explanations.

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