On the web page: http://www.cut-the-knot.org/pythagoras/#Loomis , you will find many proofs of the Pythagorean Theorem. Pick one and present it in your own words. If you choose one which involves moving pieces around, please cut out some pieces (preferably from a heavy paper) and include that with your homework.

Note the highlighted phrase above. You need to understand the prooof you pick well enough so you can teach it to someone else. That’s a good way to be sure you can express the proof “in your own words”.