Instructional Video

Arc Length

Curated and Reviewed by Lesson Planet

There's no need to go to great lengths to learn about circles. Young mathematicians view a short YouTube video on how to find arc lengths of circles. The video covers a few examples highlighting the method of determining arc length in terms of pi and to the nearest hundredth.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Use the video as part of a review on circles
Classroom Considerations
  • Learners should be familiar with the circumference of circles
  • Note that the resource uses theta to represent the central angle
Pros
  • Shows and explains each step of the solution process
Cons
  • Video quality is poor
Common Core