lunedì 27 gennaio 2014

NYT Science: It All Started With a 12-Year-Old Cousin

It All Started With a 12-Year-Old Cousin
By CLAUDIA DREIFUS

Salman Khan’s first student was a family member. Now his free electronic schoolhouse reaches more than 10 million users around the world.

Published: January 28, 2014 at 5:00AM

via NYT Science http://nyti.ms/1i54NbW