Unit Plan
Ted: Ted Ed: How Many Ways Are There to Prove the Pythagorean Theorem? Unit Plan
TED Talks

Ted: Ted Ed: How Many Ways Are There to Prove the Pythagorean Theorem?

For Students 9th - 10th Standards
Betty Fei details these three famous Pythagorean theorem proofs.
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Handout
Dartmouth College: The Different Styles of Euclid and Copernicus Handout
Dartmouth College

Dartmouth College: The Different Styles of Euclid and Copernicus

For Students 9th - 10th Standards
A history of the differences between Euclid's and Copernicus's methods of proving geometric ideas.
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