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Lesson Planet
Don't let your classes feel like they are going in circles. The video lesson shows pupils how to apply a formula to finding the length of an arc defined along a circle. The instructor uses three different examples to illustrate the concept.
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CCSS:
Adaptable
Concepts
Additional Tags
Instructional Ideas
- Have video available for a substitute teacher to access
- Discuss the origin of the formula in the video
Classroom Considerations
- Builds directly from the previous lesson in this 40-part series
- This video is hosted on YouTube
Pros
- Discusses variations in answers: decimal approximations, fraction approximations, and answers in terms of pi
Cons
- Relies heavily on a formula rather than developing the concept of arc length