Here are links to two of my family's favorite math classic videos.  Enjoy!
Jenny

http://www.khanacademy.org/math/vi-hart/v/doodling-in-math--spirals--fibonacci--and-being-a-plant--1-of-3

http://quietube4.com/v.php/http://www.youtube.com/watch?v=e9MwNm0gXd8&feature=player_embedded%2522%25253