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Side Lengths and Number of Tiles

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Lesson Plans and Worksheets for Grade 3
Lesson Plans and Worksheets for all Grades
Common Core For Grade 3
More Lessons for Grade 3 Math

Examples, solutions, and videos to help Grade 3 students learn how to relate side lengths with the number of tiles on a side.

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

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

Worksheets for Grade 3

Application Problem

Mara uses 15 square-centimeter tiles to make a rectangle. Ashton uses 9 square-entimeter tiles to make a rectangle.

a. Draw what Mara’s and Ashton’s rectangles might look like.

b. Whose rectangle has a bigger area? How do you know?

Note: This problem reviews G3–M4–Lesson 2, specifically tiling with square units. Invite students to share and compare their drawings for Mara’s and Ashton’s rectangles.

Concept Development

Arrange tiles to make rectangles and compare the lengths of the sides.

Lesson 4 Homework

1. Ella placed square-centimeter tiles on the rectangle below, and then labeled the side lengths. What is the area of her rectangle?

2. Kyle uses square-centimeter tiles to find the side lengths of the rectangle below. Label each side length. Then count the tiles to find the total area.

5. Label the unknown side lengths for the rectangle below, then find the area. Explain how you used the lengths provided to find the unknown lengths and area.

Try the free Mathway calculator and problem solver below to practice various 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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