Estimating Angles

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Objective

I can estimate the measure of angles in degrees using benchmarks like 90° and 180°.

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

7 questions

1

What is the benchmark angle that represents a quarter turn?

2

Describe how you can use a 90° angle to help you estimate the size of an angle that is larger than 90°.

Part 3 of 3

Exit ticket

Quick comprehension check

Estimate the measure of an angle that is slightly larger than a right angle. Estimate the measure of an angle that is a little less than half of a full turn.

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

  • Slides

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