Measuring Angles
Free to teach as-is — the teacher guide, student handout, and slides are included.
Free — we'll email you an access link. Google Docs format.
Objective
I can use a protractor to measure angles in degrees.
Part 1 of 3
Warm-up video
Doodles and Digits | Educational Math Videos · 3:34
We don't generate video — this one is by Doodles and Digits | Educational Math Videos 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 tool do we use to measure angles?
Describe the three steps for measuring an angle with a protractor, according to the video.
Part 3 of 3
Exit ticket
Quick comprehension check
“Imagine you are measuring an angle with a protractor. The angle is obtuse, and one ray lines up with the 0° mark. The other ray passes between the 120° and 130° marks, but closer to 130°. Estimate the measure of the angle. Explain your reasoning. You are measuring an angle using a protractor. One ray lines up with the 0° mark on the right side of the protractor. The other ray intersects the protractor halfway between the 50° and 60° marks on the *inner* scale. What is the measure of the angle? Is it acute, right, or obtuse? An angle is measured using a protractor. One ray lines up with the 10° mark, and the other ray lines up with the 100° mark on the same scale. What is the measure of the angle? Explain how you found your answer.”
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
Ready to present
We'll ask for your email to send your access link — nothing else.
Teaching a group at a different level?
Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.
Adapt This Lesson
