. Grade 5, Illustrative icon

What do these shapes have in Common?

Illustrative MathematicsVaries

This task asks students to classify shapes based on their properties. The task itself is straightforward, but there are a number of opportunities to present this task in class and push the level of discussion and reasoning. For example, the rule for the bottom circle is that all shapes must have all sides with the same length. Some students will likely conjecture that the rule is either that all shapes must be regular polygons or that all shapes must be equiangular.

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