Alternate Angles and Transversals
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 identify alternate interior and alternate exterior angles formed by a transversal.
Part 1 of 4
Warm-up video
Kayla Jones · 3:07
We don't generate video — this one is by Kayla Jones 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
Alternate interior angles are inside parallel lines and on opposite sides of the transversal.
- 2
Alternate exterior angles are outside the parallel lines and on opposite sides of the transversal.
- 3
Alternate interior angles and alternate exterior angles are equal to each other.
Part 3 of 4
Practice
11 questions
What does 'alternate' refer to in the context of alternate interior and alternate exterior angles?
Which of the following is a characteristic of alternate interior angles?
Part 4 of 4
Exit ticket
Quick comprehension check
“In the diagram, line a and line b are parallel and are intersected by a transversal. If angle 1 is 110° and is located on the exterior of the parallel lines, find the measure of its alternate exterior angle, angle x, which is also located on the exterior of the parallel lines but on the opposite side of the transversal.”
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