The Pythagorean Theorem
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 apply the Pythagorean theorem to determine the lengths of the sides of a right triangle.
Part 1 of 3
Warm-up video
National Science Foundation News · 3:45
We don't generate video — this one is by National Science Foundation News 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
6 questions
What is the Pythagorean theorem? Explain it in your own words and identify the parts of a right triangle involved in the theorem.
A right triangle has one leg measuring 6 cm and the other leg measuring 8 cm. Calculate the length of the hypotenuse.
Part 3 of 3
Exit ticket
Quick comprehension check
“A right triangle has one leg measuring 7 cm and a hypotenuse measuring 25 cm. Find the length of the other leg. Show all work. A right triangle has one leg measuring 15 m and a hypotenuse measuring 17 m. Find the length of the other leg. Show all work.”
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

