Radius, Diameter and Circumference



In preparation for sixth grade, we have been working on finding the radius, diameter, and circumference of circles. We read, Sir Cumference: Dragon of Pi and worked with in our small groups to measure the diameter and radius. Using string we wrapped it around the perimeter of our circle to find the circumference. Many students noticed that the circumference was about 3 times as large as the diameter. Way to go! Here are some great websites to extend your learning. Tooday we will head out to the OLC to measure the circumference of trees and then estimate their radius and diameter.

Here is a great extension using the great website Flocabulary.com