I don't know, I'm 21 and we didn't talk about any of this at school. When I was in year 5 they sent the boys and girls into different rooms and talked about puberty, but nothing about sex.
My secondary school was an all-girl grammar, but our sex-ed was covered by a woman who introduced herself as, "The nits, tits and dangly bits lady" who made us put condoms on a glass penis - one girl broke hers and had to use a banana instead and the NTDB Lady told her she should get her boyfriend to put his own condom on for his own safety. And the one or two biology lessons that mentioned it, and was all about conception and not at all about sexual pleasure.
The only time female masturbation was mentioned was once, in biology, when we had a supply teacher and one girl was texting under the desk. The teacher said to her, "Miss Jones, I don't know what you're doing under that desk, but there's a time and a place to explore one's body and it isn't in the classroom." Which was quite funny, but I think someone complained to the headmistress about it.
People were very open about periods etc, but not the sex side of things. Hardly anyone had any idea, I don't think. They took magazines like Cosmo off anyone who had them because they were 'inappropriate'.
I've never had an orgasm and I've never masturbated - it never occurred to me that I would until I was 18 and the first (and only) man I've slept with suggested it and I refused. And until he told me, I had never even heard the word 'clitoris', let alone understood anything about it.
It's sad, and it's not what I'd ever want for a daughter of mine. But I think it's a mistake to assume that times have moved on a lot; I only left in 2008 and I'm pretty sure it's the same there now. It's strange because in all other ways, it was a very pro-feminist school. I think the other 'good' school in the area was Catholic and had a very, very high rate of teen pregnancy so they were paranoid that if we knew what sex was we'd be off, messing up their league tables by having babies at 16.