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Which One Doesn't Belong is a great launch or closure that increases mathematical discourse and justification in your classroom. It allows every student to have a voice and join the conversation regardless of background knowledge. There is a whole website dedicated to this concept for all age ranges.
Students are given 4 images, graphs, or numbers and and the teacher asks, "Which one doesn't belong and why?" Each of the images has a reason for not belonging, so every student has the chance to justify and see other student perspectives. This can also bring out concepts and vocabulary that will be useful when students begin problem solving.
Google Slides Version
Google Slides Version
Here is the link to Google Slides
Tips for implementation:
Tips for implementation:
Ask students to think of which one doesn't belong and why. Then, have students take turns sharing with a partner. Call on a student to share their partner's response (not theirs) to increase listening and accountability for sharing.
Ask students to think of which one doesn't belong and why. Then, have students take turns sharing with a partner. Call on a student to share their partner's response (not theirs) to increase listening and accountability for sharing.
Listen to student conversations. Use this to help decide who to call on based on students who need to increase their mathematical status.
Listen to student conversations. Use this to help decide who to call on based on students who need to increase their mathematical status.
If students are needing a movement break, have them gather in corners of the room based on their response. Have them discuss with each other to see if their reasons are the same for not belonging. Share out by group.
If students are needing a movement break, have them gather in corners of the room based on their response. Have them discuss with each other to see if their reasons are the same for not belonging. Share out by group.
Let students say "silly" responses without judgement (such as that one is the only one in yellow.)
Let students say "silly" responses without judgement (such as that one is the only one in yellow.)
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