@boomerang,
boomerang wrote:All of the middle schoolers are together and all of the high schoolers are together, just separated by gender.
Oh! That might be some of it then, I wonder?
Here it's a bit of a thing to keep the middle school students separate from the high school students. There are a lot of changes that happen in the 6th-to-9th grade range.
I think part of that is so the 17th-year-old boys aren't hitting on the 11-year-old girls, that sort of thing.
But that would still seem to hold true across all of the school day, not just classrooms, if so. So maybe not.
Edit: just saw msolga's post, that's an interesting point. I think that these days girls have much less of a problem speaking up than in the past, but if they're really outnumbered by boys, that may be different.