Instructional Video
Loyola University Chicago

Math Flix: Illustrating Circle Vocabulary on the Computer

3rd - 5th
This video explains how to use drawing tools on a computer to draw circles and their parts. As you watch and listen to the teacher and student interact it helps clarify the thinking behind applying this concept. [5:59]
Instructional Video
Sophia Learning

Sophia: Converting Between Diameter and Radius

6th - 9th
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure.
Instructional Video
Sophia Learning

Sophia: Converting Between Diameter and Radius

9th - 10th
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure.
Instructional Video
Sophia Learning

Sophia: Converting Between Diameter and Radius: Lesson 4

9th - 10th
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure. It is 4 of 10 in the series titled "Converting Between Diameter and Radius." [2:01]
Instructional Video
Sophia Learning

Sophia: Converting Between Diameter and Radius: Lesson 7

9th - 10th
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure. It is 7 of 10 in the series titled "Converting Between Diameter and Radius." [1:56]
Instructional Video
Sophia Learning

Sophia: Converting Between Diameter and Radius: Lesson 8

6th - 9th
Given this lesson and either the diameter or radius of a circle, you'll be able to calculate the other measure. It is 8 of 10 in the series titled "Converting Between Diameter and Radius." [2:33]
Instructional Video
Shmoop University

Shmoop: Attributes of Circles

2nd - 8th Standards
This video explains circumference, radius and diameter in an appealing way for students to understand.