Instructional Video

Proportions with Angle Bisectors: Lesson

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This Proportions with Angle Bisectors: Lesson instructional video also includes:

Half at one end becomes proportional on the other. As part of a basic geometry playlist, the video introduces the Angle Bisector Theorem. The presentation uses the theorem to find missing lengths in triangles.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Develop a proof for the Angle Bisector Theorem
Classroom Considerations
  • Individuals should be able to solve proportions
  • Pupils should know the definition of an angle bisector
  • This video is hosted on YouTube
Pros
  • Links to other videos and resources about angle bisectors
  • Shows the algebra required in the example problems
Cons
  • None
Common Core