Parallel and Skew Lines

Parallel lines are often incorrectly defined as lines that do not intersect. The instructor in a concept video explains the difference between parallel and skew lines. He also refers to the correct notation and symbols during the lesson.

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CCSS: Adaptable
Instructional Ideas

  • Provide classes with a graphic organizer, such as a waffle, to record new vocabulary and examples
  • Use the video paired with other vocabulary videos as an independent lesson to begin a geometry unit
Classroom Considerations

  • Requires Internet access to view the video
Pros

  • Explains the concept efficiently and thoroughly
Cons

  • Without reference to real-life context, the concept remains abstract
Common Core