Similar Shapes Sides

New Review

Scale up a lesson on similarity. Young mathematicians watch a video that investigates the sides of similar figures. They see how to calculate missing sides from the given measures using scale factors.

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CCSS: Adaptable
Instructional Ideas

  • Use the video as part of a review session
Classroom Considerations

  • Familiarity with proportional reasoning is necessary
  • Learners should have experience with similarity
Pros

  • Provides separate textbook examples and practice problems
  • Explanations are easy to understand
Cons

  • Esoteric treatment of topic may not interest pupils
Common Core