Exploring Circle Properties

8th GradeMath60 min

Learning Objective

I can identify and describe the properties of circles, including radius, diameter, circumference, and area.

Lesson Flow

Watch Video

8 min

Math Antics - Circles, Circumference And Area

mathantics

Guided Notes

12 min

Key concepts students will learn:

  • The formula for finding the circumference of a circle is Circumference = Pi × diameter, or C = πd.

  • The formula for finding the area of a circle is Area = Pi × radius squared, or A = πr².

  • To find the radius when you are given the diameter, you divide the diameter by 2.

Practice

18 min

12 questions • Multiple choice & Short answer

Exit Ticket

5 min

A circle has a radius of 5 cm. What is the area of the circle? Show your work, using π ≈ 3.14.

Teacher Guide

Get the complete package:

  • Answer keys for all questions
  • Differentiation strategies
  • Extension activities
  • Printable student handouts