Single-Sex Experiment in Idaho
"History would tell you that boys are just not good at reading and writing," said Gilbert. "It's not that they, the boys develop later. It's that they develop differently. A six-year-old girl's brain is more similar to a nine-year-old girl's brain, than a six-year-old girl's brain is to a six-year-old boy's brain."
In fact, a 2010 study released by the Center on Education Policy showed that among fourth grade students, girls outperformed the reading achievement of boys in all 50 states.