# Classifying Polygons Lesson Plan: Geometry

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This lesson accompanies the BrainPOP topic **Classifying Polygons**, and supports the standard of classifying two-dimensional figures based on the presence or absence of parallel or perpendicular lines, or the presence or absence of angles of a specified size. Students demonstrate understanding through a variety of projects.

**Step 1: ACTIVATE PRIOR KNOWLEDGE**

Display an image of different polygons, like this:

Ask students:

*How are these shapes alike? How do they differ?**How might you sort the shapes?*

**Step 2: BUILD KNOWLEDGE**

- Read the description on the
**Classifying Polygons topic page**. - Play the
**Movie**, pausing to check for understanding.

**Step 3: APPLY and ASSESS **

Assign **Classifying Polygons Challenge** and **Quiz**, prompting students to apply essential literacy skills while demonstrating what they learned about this topic.

**Step 4: DEEPEN and EXTEND**

Students express what they learned about classifying polygons while practicing **essential literacy skills** with one or more of the following activities. Differentiate by assigning ones that meet individual student needs.

**Make-a-Movie**: Produce a tutorial explaining how to determine whether or not two shapes are congruent.**Make-a-Map**: Create a concept map identifying one way to sort quadrilaterals, with examples of shapes in each category.**Creative Coding**: Code a sorting game challenging players to sort triangles based on angle size.

**More to Explore **

**Sortify: Angles**: Challenge players to sort by attributes, including angle size, presence of parallel lines, and more in this learning game.

**Related BrainPOP Topics**: Deepen understanding of geometry with these topics: **Polygons**, **Types of Triangles**, and **Geometry**,

**Teacher Support Resources:**

**Pause Point Overview**: Video tutorial showing how Pause Points actively engage students to stop, think, and express ideas.**Learning Activities Modifications**: Strategies to meet ELL and other instructional and student needs.**Learning Activities Support**: Resources for best practices using BrainPOP.