"There is no recipe to be a great teacher, that's what is unique about them." — Robert Sternberg

To the Kenyan families, school doesn't really matter because none of them are going on to college. Almost all of drop out of school and so, they're spending their time learning things that are important to them.

Well, first of all, we did lots of studies where we show practical intelligence doesn't correlate with G. We have probably two dozen studies that practical intelligence better predicts job success than IQ.

ACT and SAT each have their own parts of the country. The GRE has its lock on graduate admissions. And so, one could blame the companies, but really, economically, they have no incentive to change things very much because they're getting the business.