Videos, examples, and solutions to help Grade 3 students learn how to construct rectangles from a given number of unit squares and determine the perimeters.

Common Core Standards: 3.MD.4, 3.MD.8, 3.G.1

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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 Grade 3, Module 7, Lesson 18**

Download the Worksheets for Grade 3, Module 7, lesson 18 (pdf)

Lesson 18 Homework

1. Shade in squares on the grid below to create as many rectangles as you can with an area of 18 square centimeters.

2. Find the perimeter of each rectangle in Problem 1 above.

3. Estimate to draw as many rectangles as you can with an area of 20 square centimeters. Label the side lengths of each rectangle.

a. Which rectangle above has the greatest perimeter? How do you know?

b. Which rectangle above has the smallest perimeter? How do you know?

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.

Common Core Standards: 3.MD.4, 3.MD.8, 3.G.1

Related Topics:

Lesson Plans and Worksheets for Grade 3,

Lesson Plans and Worksheets for all Grades,

More Lessons for Grade 3,

Common Core For Grade 3

Download the Worksheets for Grade 3, Module 7, lesson 18 (pdf)

Lesson 18 Homework

1. Shade in squares on the grid below to create as many rectangles as you can with an area of 18 square centimeters.

2. Find the perimeter of each rectangle in Problem 1 above.

3. Estimate to draw as many rectangles as you can with an area of 20 square centimeters. Label the side lengths of each rectangle.

a. Which rectangle above has the greatest perimeter? How do you know?

b. Which rectangle above has the smallest perimeter? How do you know?

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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