My personal experience is that in fairfax schools: That the rest of the shop class and I had a off subject lecture on the many ways a man can be stimulated to ejaculation. The Shop teacher main goal was to inform us about manipulating the prostrate gland.
This also was about the time the earth sciences teacher got repremanded for dateing his students. Just a few years before the elementry teacher got busted with mirrors on his shoes.
But that was ages ago, when at 16 you could smoke cigarettes in the pit, your 18 year old seniors supplied the beer for a couple of bucks extra and Sexual education was something your parents would inform you on.