Lesson 18

Which One Doesn’t Belong?

Lesson Purpose

The purpose of this lesson is for students to apply their understanding of volume to create a Which One Doesn’t Belong activity.

Lesson Narrative

This lesson offers teachers the opportunity to listen to ways in which students describe and calculate volume. After the warm-up, three activities are given, but it is not expected that students do all three. As the activities progress, there is one additional element missing from the Which One Doesn’t Belong. The choice of which activities to use is left to the teacher based on how much scaffolding the students may need. This lesson can take 1–2 days if students facilitate their creations with other groups.
  • Action and Expression
  • MLR8

Learning Goals

Teacher Facing

  • Categorize shapes by their shared attributes.

Student Facing

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

Required Materials

Materials to Copy

  • Shape Cards for WODB Design

Required Preparation

Activity 1:

  • Create a set of cards from the blackline master for each group of 2. 

CCSS Standards


Lesson Timeline

Warm-up 10 min
Activity 1 15 min
Activity 2 15 min
Activity 3 15 min
Lesson Synthesis 10 min
Cool-down 5 min

Teacher Reflection Questions

Reflect on your experience with the instructional routines in the curriculum. What moves or questions have improved the learning for each or your students during this routine? What improvements would you make next time?

Print Formatted Materials

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Additional Resources

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