I came across this documentary which I had NEVER heard of before called "It's Elementary". It was released in 1996, and basically it chronicles a bunch of schools ranging from Elementary school to I think Middle school that brought up the topic of homosexuality in class to both get an understanding of what the students felt about it and to talk to them about how to deal with gay classmates or classmates who may have gay parents.
Somehow I'd never heard of it, but apparently it's been used to teach teachers how to comfortably bring up the topic in class, and surprisingly, despite what the kids said about their parents' views on the matter, they seemed to be relatively open-minded.
Of course, some of the questions/comments get a bit ridiculous when you get to the older kids ("I thought only white people were gay") but regardless it's good they're getting some sort of education about these issues. This of course, was over 10 years ago. I don't know how much of this sort of thing still goes on today.
They made another documentary called "It's Still Elementary" which is a look back at the impact of "It's Elementary", the challenges the filmmakers faced in getting it distributed, and the best part is you get to see some of the children 10 years later all grown up and see what great adults they've turned into. You can watch the full movie "It's Still Elementary" on the Logo website.
Anyway, for anyone that's interested, here's the original "It's Elementary" documentary in 4 parts (37 minutes). It's a really great watch imo.