http://t2.gstatic.com/images?q=tbn:ANd9GcSoQTWRsBvjCbs_LMFsFghL7rCYnNTmB1LkWqkyra9lZrNRU1SQGVddb74By Peter Stanford. Mathematician, Jo Boaler, tells Peter Stanford how Massive Open Online Courses can open up oversubscribed subjects to a huge pool of online students – and they’re free. 
Even the largest university lecture hall can only squeeze in a couple of thousand students, so addressing her remarks to an audience of 40,000 was, British-born, California-based Professor Jo Boaler admits, a whole new teaching experience. More...