Instructional Video

Conditions for Parallelograms

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It's not a parallelogram until proven otherwise. Scholars learn about the conditions for a quadrilateral to be a parallelogram. They watch a video to see how to apply the conditions to prove that a given quadrilateral is a parallelogram.

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CCSS: Adaptable
Instructional Ideas
  • Use the video as part of an intervention strategy
Classroom Considerations
  • Third of seven lessons in the Geometry - Quadrilaterals and Polygons unit
  • Prior experience with two-column proofs is beneficial
  • This video is hosted on YouTube
Pros
  • Practice packet includes the examples from the video to help students take notes 
  • Uses color to help distinguish relevant lines and angles
Cons
  • None
Common Core