No matter what you think of the George W. Bush-era No Child Left Behind legislation, there are some results that can’t be disputed. One of them is that schools were under a huge amount of pressure to keep their scores high. I have nothing against high scores, but sometimes the costs outweigh the benefits. A lot of schools, for example, decided that they didn’t have enough time during the school day to teach their kids what they needed to know. So they did something that might have seemed logical at the time, but was a complete disaster: They cut out recess. We’re not talking high-schools here, or even middle schools. There are tons of kindergartens where the kids don’t get recess.