Pythagorean+Theorem

[|This] lesson will help you figure out the Pythagorean Theorem all by yourself.

[|Chris Harbeck] used an interesting twist to teach the Pythagorean Theorem:

//I was supposed to start a new unit with your this week. I had a tragic accident on the ice yesterday. I slipped and bumped my head. I do not remember what I was supposed to teach you. Although I do remember my name, where I live and who all of you are (aliens I think!!)

All I have left are a few artifacts in my backpack and these movies had put into a blog post. Help me out. Can you figure out what I was going to teach you and teach me before I regain my memory.//

The artifacts are some diagrams, the formula, a statue of Pythagoras, and several videos about the theorem.