2D Shapes and Polygons

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Objective

I can explain what a polygon is and identify examples of shapes that are and are not polygons.

Part 1 of 3

Warm-up video

Unknown Channel · 5:00

We don't generate video — this one is by Unknown Channel on YouTube. The practice questions and exit ticket below were drafted by AI for this objective, and every question is editable in the teacher guide.

Part 2 of 3

Practice

3 questions

1

Explain in your own words what a polygon is. What three things must be true for a shape to be a polygon?

2

Draw two shapes, one that is a polygon and one that is NOT a polygon. Explain why each shape either is or is not a polygon, using the three characteristics you described in the first question.

Part 3 of 3

Exit ticket

Quick comprehension check

Is a shape that is flat, closed, and made of line segments a polygon? Explain why or why not. Is a shape that is flat, but has a curved side, a polygon? Explain why or why not.

Sample answer included in the free materials

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