## Reflection: High Quality Task Classifying Polygons - Section 2: Practice

Although the Venn diagram classification was difficult for some students, other students excelled at it.  An easy extension activity for this lesson could be to have students use a three circle Venn diagram.  This type of Venn diagram is much more complex in terms of determining placement for the polygons.  Students would need to have a solid understanding of attributes in order to correctly place the polygons within the three circle Venn diagram.

Extension

# Classifying Polygons

Unit 7: Geometry
Lesson 9 of 22

## Big Idea: Venn Diagram meets 2-D shapes!

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60 minutes

### Erin Doughty

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