Instructional Video

Parallel Lines and Transversals: Lesson

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This Parallel Lines and Transversals: Lesson instructional video also includes:

Segment transversals proportionally. Given a diagram with three parallel lines and two transversals, the narrator of a short video points out the parallel lines cut the transversals proportionally. The portion of a long playlist on geometry provides examples of the theorem in action.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • Create a proof of the proportionality of segments of transversals between parallel lines
Classroom Considerations
  • Assumes pupils are familiar with the Triangle Proportionality Theorem
  • Individuals should be comfortable solving proportions
  • This video is hosted on YouTube
Pros
  • Show the mathematical steps in the examples
  • Links to practice in identifying parallel lines and transversals
Cons
  • None
Common Core