Using Youtube to Teach Math (or anything)

When my son went to his formal he wanted to know how to tie a tie. Solution Youtube.

We have started to use youtube videos at my secondary school (some we produce ourselves) to help students learn everything from podcasting to math concepts.

The article below entitled "Need Help With Class? YouTube Videos Await" discusses how Youtube math tutorials can help students.

http://www.edweek.org/ew/articles/2008/12/11/208825bctecyoutubetutoring_ap.html