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Unit 7 - Lesson 3 - Grade 3: Illustrative Mathematics

By Formative Library
Last updated 7 months ago
6 questions
Note from the author:
Grade 3 Unit 7
Lesson 3: Attributes that Define Shapes
CC BY 2021 Illustrative Mathematics®
Grade 3 Unit 7
Lesson 3: Attributes that Define Shapes
CC BY 2021 Illustrative Mathematics®
Lesson: Attributes that Define Shapes

Number Talk: Multiply Multiples of Ten (Warm Up)

Find the value of each expression mentally.

4 x 40

8 x 40

7 x 40

9 x 40

Learn How to Play Mystery Quadrilateral

Play a round of Mystery Quadrilateral with your teacher.
  1. Partner A: Choose a shape from the group of quadrilaterals. Place it in the mystery quadrilateral folder without your partner seeing it.
  2. Partner B: Ask up to 5 “yes” or “no” questions to identify the quadrilateral. Then guess which quadrilateral is the mystery quadrilateral.
  3. Partner A: Show your partner the mystery quadrilateral.
  4. Switch roles and play again.

Play Mystery Quadrilateral

  1. Partner A: Choose a shape from the group of quadrilaterals. Place it in the mystery quadrilateral folder without your partner seeing it.
  2. Partner B: Ask up to 5 “yes” or “no” questions to identify the quadrilateral. Then guess which quadrilateral is the mystery quadrilateral.
  3. Partner A: Show your partner the mystery quadrilateral.
  4. Switch roles and play again.
Cool Down: Mystery Shape

Which quadrilateral is being described?
  • Hint 1: It has 4 sides.
  • Hint 2: All of its sides are the same length.
  • Hint 3: It has no right angles.

Which hints do you need to guess the quadrilateral? Explain your reasoning.