Gates likes the online Khan Academy

Fortune Magazine lauds the online teaching library of the Khan Academy. Bill Gates is pretty impressed and so are thousands of others. Fortune reports that “by any measure (it’s) the most popular educational site on the web. Khan’s playlist of 1,630 tutorials (at last count) are now seen an average of 70,000 times a day — nearly double the student body at Harvard and Stanford combined.”

Here’s a video on the concept of Interest: