The vast majority of countries did
not manage to educate all their kids to high levels, not even all of their better-off kids. Compared to most countries, the United States was typical, not much better nor much worse. But, in a small number of countries, really just a handful of eclectic nations, something incredible was happening. Virtually
all kids were learning critical thinking skills in math, science, and reading. They weren’t just memorizing facts; they were learning to solve problems and adapt. That is to say, they weretraining to survive in the modern economy.