Measuring Angles with a Protractor
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
Whats Up Dude · 3:43
We don't generate video — this one is by Whats Up Dude 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 the name of the line on a protractor that goes from 0° to 180°? What is its purpose when measuring angles?
Imagine you are measuring an angle and you've lined up one side of the angle with the baseline of the protractor. The other side of the angle lines up halfway between the 50° mark and the 60° mark. What is the measurement of the angle?
Part 3 of 3
Exit ticket
Quick comprehension check
“An angle has one side lined up with the 0° mark on the left side of the protractor's baseline. The other side of the angle lines up with the 30° mark on the outer numbers. What is the measurement of the angle? An angle has one side lined up with the 0° mark on the right side of the protractor's baseline. The other side of the angle lines up with the 110° mark on the inner numbers. What is the measurement of the angle? ”
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

