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Unit 7 - Lesson 11 - Grade 3: Illustrative Mathematics

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Last updated 11 months ago
16 questions
Note from the author:
Grade 3 Unit 7
Lesson 11: Rectangles with the Same Perimeter
CC BY 2021 Illustrative MathematicsĀ®
Grade 3 Unit 7
Lesson 11: Rectangles with the Same Perimeter
CC BY 2021 Illustrative MathematicsĀ®
Lesson: Rectangles with the Same Perimeter
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Cool Down: Perimeter of 18
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Number Talk: Multiply to Divide (Warm Up)

Find the value of each expression mentally.
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Question 1
1.

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Question 2
2.

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Question 3
3.

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Question 4
4.

Perimeter of 16 Units

Question 5
5.

Draw as many different rectangles with a perimeter of 16 units as you can.

Question 6
6.

Calculate the area of each rectangle you drew. Explain or show your reasoning.

Same Perimeter, Different Area

Question 7
7.

Draw 2 rectangles with the perimeter of 12 units but different areas.

Question 8
8.

Draw 2 rectangles with the perimeter of 20 units but different areas.

Question 9
9.

Draw 2 rectangles with the perimeter of 26 units but different areas.

Question 10
10.

Draw 2 rectangles with the perimeter of 34 units but different areas.

Question 11
11.

Draw 2 rectangles with a perimeter you chose but different areas.

Question 12
12.

Choose 1 or 2 rectangles you want to share and put them on your poster. Try to look for rectangles that are different from what other groups have already placed.

Gallery Walk
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Question 13
13.

As you visit the posters with your partner, discuss something you notice.

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Question 14
14.

As you visit the posters with your partner, discuss something you wonder.

Question 15
15.

Draw two rectangles that each have a perimeter of 18 units, but different areas.

Question 16
16.

Explain or show your reasoning.