Instructional Video

Duplicating a Line Segment

Curated and Reviewed by Lesson Planet

Geometric constructions use simple tools to do complex things. Introduce learners to constructions by copying a segment. A concept video features the proper procedure for performing constructions, so young mathematicans learn the correct way to do it from day one. Follow-up videos apply the construction to create triangles.

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CCSS: Adaptable
Additional Tags
Instructional Ideas
  • View the initial video with your classes and answer any clarifying questions; have pupils watch the three problem videos independently and perform the constructions
  • Use the videos when a substitute is necessary to aid instruction
Classroom Considerations
  • Requires compasses and straight edges for geometric constructions
Pros
  • The instructor uses the correct vocabulary and notation throughout the videos
Cons
  • Does not apply real-life context to the task
Common Core