Pythagorean Theorem and Its Converse

This Pythagorean Theorem and Its Converse lesson plan also includes:

Challenge scholars to prove the Pythagorean Theorem geometrically by using a cut-and-paste activity. They then must solve for the missing sides of right triangles.

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CCSS: Adaptable
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Instructional Ideas

  • Use the activity to introduce the Pythagorean Theorem
Classroom Considerations

  • Activity requires materials, such as scissors, glue, and colored pencils/markers
  • After using the proof activity, consider using just the algebraic representation to solve problems, rather than using the cut-and-paste activity for each problem
  • This resource is only available on an unencrypted HTTP website. It should be fine for general use, but don’t use it to share any personally identifiable information

  • Teacher resource contains comprehensive answer key
  • Includes printable resources, including a blank chart for squares and square roots to prepare for the Pythagorean Theorem

  • Outdated California standards information
Common Core