Geometric Constructions

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 construct an equilateral triangle, a square, and a regular hexagon inscribed in a circle using geometric tools.

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

7 questions

1

Describe the steps to inscribe a square inside a circle using a compass and straightedge.

2

Explain why the side length of an equilateral triangle inscribed in a circle is related to the radius of the circle.

Part 3 of 3

Exit ticket

Quick comprehension check

Describe the steps to construct an equilateral triangle inscribed in a circle using a compass and straightedge. Describe the steps to construct a square inscribed in a circle using a compass and straightedge. Describe the steps to construct a regular hexagon inscribed in a circle using a compass and straightedge.

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