It’s been proven that students taught by a personal tutor perform two standard deviations higher than those in a classroom. Luis von Ahn wants to replicate this effect with technology. He explains how Duolingo, the free language learning app he helped create, continues to evolve in pursuit of that idea.
“We would like to make it so that everybody has access to the absolute best type of education, regardless of whether you’re wealthy or not. So we want to be as good as a one-on-one tutor.”
Kudos to Gary for link.