Instructional Video

Circles: Radius, Diameter and Circumference

Curated and Reviewed by Lesson Planet

Fascinating discussion regarding the origin of Pi accompanies a detailed explanation of how to find the circumference of a circle. Since this is the first installment in a series on circles, the concept of circumference is separated into easy to understand parts. Consequently, it provides a great exploration for students from upper elementary to high school.

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Classroom Considerations
  • This video is hosted on YouTube