I just know the way lots of girls acted in my classes in high school, compared to the way my classmates acted in college.
Although if you know how to address the core problem I would be all keen to hear it.
The answer is never going to be splitting genders up and enhancing the dumb tribal bullshit that leads to the detached dehumanization that misognist frat-boys consist of.
Also to be perfectly frank, after my stint in the inner-city I have to think there is some cultural element going on in suburbs that partly results in this.
The inner-city girls were a wildly different creature in this regard, so much so that in spite of all the headache inducing nightmare of teaching in a poor school? I really miss those girls.
I don't know if this is a white vs black/puerto-rican thing, or a class one (or both). But it is damn sure noticeable.