““Why were American kids consistently underestimated in math? In middle school, Kim and Tom had both decided that math was something you were either good at, or you weren’t, and they weren’t. Interestingly, that was not the kind of thing that most Americans said about reading. If you weren’t good at reading, you could, most people assumed, get better through hard work and good teaching. But in the United States, math was, for some reason, considered more of an innate ability, like being double-jointed.””
