Curated OER
Flying with Pythagoras
A lengthy narrative about Pythagoras and his students precedes an activity in which your young mathematicians practice using the Pythagorean theorem to solve three problems about flight and distance. Answers are provided.
Yale University
Ynhti: The Early Greeks Contribution to Geometry
Joseph A. Montagna gives an introduction to geometry and the life of Pythagoras. There are lesson ideas and teacher/student bibliographies as well.