It was pretty much a side note in the sex ed I had, as well. Something like: "As you grow up, some of you might find you're attracted to the same sex, and there's nothing wrong with that." Not that it changed the mindsets of immature teenagers. Bisexuality was never mentioned, and a few friends I came out to didn't know what it meant. One even thought I was telling them I was intersex. There seemed to be a misconception that being trans is another "version" of being homosexual, with no concept of them being separate. I also seem to remember being taught that "partner" is always the correct term for a lover of the same sex, and never girlfriend or boyfriend. I may have misinterpreted what was said about that, though.