the world were not always so smart, so change is possible. it sometimes feels like it s impossible, but one thing that all of these countries did was they made school harder. it sounds really simple, but in every conceivable way, they made it much harder to become a teacher, they made the material more challenging and the testing and the homework and everything was just of a more rigorous, higher quality. so it was quality over quantity. and the information you got from these embedded students is just amazing. another one you shadowed, a kid named eric, he went from an affluent suburb to south america. they actually have raves conducted to make sure people obey the 10:00 study curfew because students are so ambitious. i really like how koreans teach math because it s so much more integrateive.