Classifying Polygons

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Objective

I can classify polygons based on their sides and angles.

Part 1 of 4

Warm-up video

Miacademy & MiaPrep Learning Channel · 10:33Vetted channel

We don't generate video — this one is by Miacademy & MiaPrep Learning 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 4

Key concepts

3 concepts

  1. 1

    Polygons are flat, closed shapes made of straight sides.

  2. 2

    Triangles can be classified by their sides as equilateral, isosceles, and scalene, or by their angles as right, acute, and obtuse.

  3. 3

    Quadrilaterals are sorted by the number of parallel sides they have; for example, a quadrilateral with two pairs of parallel sides is called a parallelogram.

Part 3 of 4

Practice

12 questions

1

What is the most general classification for a polygon with four sides?

2

Explain the difference between an equilateral triangle and an isosceles triangle.

Part 4 of 4

Exit ticket

Quick comprehension check

Explain how a square can be classified as both a rectangle and a rhombus.

Sample answer included in the free materials

Get the materials

Teacher guide, student handout, and slides — free, in Google Docs format

  • Teacher Guide

    Complete lesson plan with answer keys and alternate activities

  • Student Handout

    Printable worksheet

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