I just learned about Vi Hart's "doodling in math class" videos (hat tip goes to Fawn Nguyen).
Vi calls herself mathemusician - and definitely, she's a talented and smart gal! I'm sure you'll enjoy her videos (as long as you can follow her super fast speeaking). Here are some that I enjoyed:
Doodling in Math: Spirals, Fibonacci, and Being a Plant [1 of 3]
Here's a link to learn more about Fibonacci numbers in nature, so you can read about it at a slow pace : )
Binary Hand Dance was pretty cool too!
Her series of "mathematical doodling" videos have become somewhat of a viral success. Here's one more:
Doodling in Math Class: Infinity Elephants