"In the single-sex classes, teachers use microphones that allow them to electronically adjust the tone of their voice to match the level that research suggests is best for boys. When preparing for a test, the boys may go for a run, or engage in some other activity, while the girls are more likely to do calming exercises, such as yoga." Okay, so that’s maybe not the worst thing imaginable, but might it be more beneficial to teach some of the boys to learn to calm themselves down using yoga and to encourage some girls to run around more?
Maybe instead of presuming all boys need to run before a test, they could sort the kids by finding out which ones—boys or girls—benefit from being more active and which ones thrive in a quieter, more introspective environment. If we instead just give in to what we assume girls and boys are stereotypically interested in, it doesn’t change anything; it only reinforces the problems we already have—and risks alienating a lot of kids who don't fit neatly into gender stereotypesAmen to that.