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®
Find the value of each expression mentally.
4 x 40
8 x 40
7 x 40
9 x 40
Partner A: Choose a shape from the group of quadrilaterals. Place it in the mystery quadrilateral folder without your partner seeing it.
Partner B: Ask up to 5 “yes” or “no” questions to identify the quadrilateral. Then guess which quadrilateral is the mystery quadrilateral.
Partner A: Show your partner the mystery quadrilateral.
Switch roles and play again.
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.