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Unit 7 - Lesson 15 - Grade 3: Illustrative Mathematics
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Instructions
Lesson: Design Your Own Robot
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Cool Down: Reflect on Learning About Perimeter
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Grade 3 Unit 7
Lesson 15: Design Your Own Robot
CC BY 2021 Illustrative Mathematics®
Grade 3 Unit 7
Lesson 15: Design Your Own Robot
CC BY 2021 Illustrative Mathematics®
What Do You Know About Area and Perimeter? (Warm Up)
1
Question 1
1.
What do you know about area and perimeter?
Create Your Own Robot
Question 2
2.
Create your own robot with these specifications. Explain or show your work so it is clear your robot meets the required specifications.
Each body part must be a rectangle.
Head: perimeter of 36 units
Neck: perimeter of 8 units
Body: perimeter of 64 units
Each arm: perimeter of 24 units
Each leg: perimeter of 32 units
Include one more rectangular feature of your choice on your robot.
visibility
View drawing
Question 3
3.
Find the area of each of your robot’s body parts.
visibility
View drawing
Question 4
4.
Find the total area of your robot.
visibility
View drawing
Question 5
5.
Gallery Walk: As you visit the robots with your partner, discuss the different areas that can be created with rectangles that have the same perimeter.
Question 6
6.
Which lesson about shapes and perimeter was your favorite? Why?