The following video tells of how the internet allows one good teacher to teach to 200,000 students, instead of 20:

http://vimeo.com/moogaloop.swf?clip_id=11731351&server=vimeo.com&show_title=1&show_byline=0&show_portrait=0&color=00ADEF&fullscreen=1

Sal Khan at Gel 2010 from Gel Conference on Vimeo.

Sal Khan, the teacher, understands the fundamental basic that learning is about understanding, not memorization or formulaic tedium.