Estimating Angles
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Objective
I can estimate the measure of angles in degrees using benchmarks like 0°, 90°, and 180°.
Part 1 of 3
Warm-up video
Numberock · 2:59
We don't generate video — this one is by Numberock 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
What is an angle benchmark? Give three examples of angle benchmarks and their measures in degrees.
Describe what an acute angle is. How does its measure compare to 90°?
Part 3 of 3
Exit ticket
Quick comprehension check
“Estimate the measure of an angle that looks close to half of a right angle. Estimate the measure of an angle that looks a little bit smaller than a straight angle. Estimate the measure of an angle that looks a little bit larger than a right angle.”
Sample answer included in the free materials
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Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
Complete lesson plan with answer keys and alternate activities
Student Handout
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