Learning in groups, a recent talk by Sugata Mitra

Sugata Mitra's recent Ted book 'Beyond the Hole in the Wall' synopsis
http://blog.ted.com/2012/01/24/new-ted-book-asks-can-changing-how-we-teach-make-our-kids-smarter-more-creative/
ans a write up about the same book in 'Inside Higher Education'
http://www.insidehighered.com/blogs/technology-and-learning/education-innovation-beyond-hole-wall
A more recent talk