Well, not just them. When I was in High School we had a very complete sex education course with information on sperm travelling through to the ovaries, all the birth control methods, including abstinence, everything you ever wanted to know but were afraid to ask. It was quite interesting given that I went to a Roman Catholic High School. Anyway, one girl told us you didn't have to have intercourse to get pregnant. She knew because she had read it in Dear Abbey (Abby?).
It takes more than materials and a classroom to educate a child.
Shalom.
Believe it or not, I remember that. The point that Abby was trying to make, and correctly so, that it IS possible to get pregnant without penetration. She was warning girls not to pet without their clothes on. Enough rubbing the right way and that sperm can get in and do its deed. It DOES happen, but it's rare.