Instructional Video

Tangents to Circles

Curated and Reviewed by Lesson Planet

Touch a circle once. Individuals watch a video and learn two theorems related to tangents and circles. The pupils then apply the theorems to find missing angle measures and lengths in figures. At the end, they practice their skills on their way to mastery.

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CCSS: Adaptable
Instructional Ideas
  • Provide a short review of the sum of angles in different figures
Classroom Considerations
  • Assumes the class knows how to apply the Pythagorean Theorem
  • First lesson in a series of five covering circles
  • This video is hosted on YouTube
Pros
  • Asks the viewers to pause the video and work on an example before providing the solution
  • Includes detailed answer keys
Cons
  • None