EngageNY
Why Move Things Around?
Explore rigid motion transformations using transparency paper. Learners examine a series of figures and describe the transformations used to create the series. They then use transparency paper to verify their conclusions.
Curated OER
Time Travel, Black Holes, and Relativity
Young scholars read the novel, The Time Machine, and compare H.G. Well's perceptions of the future with those presented in The Third Wave, by Alvin Toffler. They research current scientific and mathematical theories that relate to space...
University of St. Andrews (UK)
University of St. Andrews: Euclid of Alexandria
Provides information on Euclid's accomplishments as a mathematician.
TED Talks
Ted: Ted Ed: How Many Ways Are There to Prove the Pythagorean Theorem?
Betty Fei details these three famous Pythagorean theorem proofs.
Dartmouth College
Dartmouth College: The Different Styles of Euclid and Copernicus
A history of the differences between Euclid's and Copernicus's methods of proving geometric ideas.