Geometric Centers of a Triangle
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 accurately locate and label the incenter, circumcenter, orthocenter, and centroid on a triangle diagram and explain their key characteristics.
Part 1 of 3
Warm-up video
Unknown Channel · 5:00
We don't generate video — this one is by Unknown Channel 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
9 questions
Describe how to locate the incenter of a triangle and explain its significance in relation to the triangle's sides.
Draw a triangle and accurately label its incenter, circumcenter, orthocenter, and centroid. Provide a brief description of each point's characteristics.
Part 3 of 3
Exit ticket
Quick comprehension check
“Draw a triangle and accurately locate and label its incenter, circumcenter, orthocenter, and centroid. For each point, provide a brief description of its key characteristics and how it is constructed. Given a triangle with vertices A(2, 3), B(4, 7), and C(6, 5), calculate the coordinates of the centroid. Then, draw the triangle and label the incenter, circumcenter, and orthocenter, explaining how each point is determined.”
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
