Lesson 18 Which One Doesn’t Belong?

    • Let’s create a Which One Doesn’t Belong.

Warm-up Which One Doesn’t Belong? Volume

Which one doesn’t belong?

  1. Prism. Length, 3 units, width, 3 units, height, 4 units.
  2. 6-sided rectangular prism.
  3. prism. length, 2 units. width, 2 units. height, 10 units.
  4. Rectangle, length, 18 units. width, 2 units.

Activity 1 Which One Doesn’t Belong? Design 1

  1. Choose 3 shapes from the set of cards.

  2. Draw a fourth shape to complete the Which One Doesn’t Belong.

  3. For each shape, discuss one reason why it does not belong.

A

B

C

D

Activity 2 Which One Doesn’t Belong? Design 2

  1. Choose 2 shapes from the set of cards.

  2. Draw a third and fourth shape to complete the Which One Doesn’t Belong.

  3. For each shape, discuss one reason why it does not belong.

Which one doesn’t belong?

A

B

C

D

Activity 3 Which One Doesn’t Belong? Design 3

Create your own Which One Doesn’t Belong about any mathematical idea you want others to notice.

Which one doesn’t belong?

A

B

C

D