In 2006, MIT and Harvard Business School graduate Salman Khan was just trying to help his cousins with their studies by sending them video tutorials. He never would’ve imagined that seven years later, millions of children around the world would be watching those videos using Khan Academy to supplement their lessons. Some schools  have even adopted his curriculum. And the lessons now go far beyond the initial verticals of science and mathematics. If you’re looking to learn to code, Khan Academy now offers free video how-to’s worldwide.

But international penetration has been slower than expected. In the video below, Sal Khan explains why, and how organizations, such as the Carlos Slim Foundation, are helping to ease the pain.