I stumbled upon some excellent video tutorials covering everything from Arithmatic, all the way thru Calculus III; and also on other subjects such as Physics, Biology, Banking, Economics, …etc.
Khan Academy is run by an entrepreneur who is a MIT graduate. He started off by tutoring his cousins, nieces and nephews on mathematics. He has now created over 1600+ videos. Many students find his videos as good supplements to what they’re studying. Check it out…
Yup, pretty good work. Mercury News ran an article on him earlier this week. He also received VC funding.
http://www.mercurynews.com/ci_15339889?IADID=Search-www.mercurynews.com-www.mercurynews.com&nclick_check=1