Is my school spying on kids on facebook?

[Jacob]

Anyway, I'm 14 years old and some weird things have been happening on Facebook recently.

About a 2 weeks ago I got a request on Facebook from a teenage girl, I saw she had some mutural friends with me and they were all kids that went to my school (what a coincidence).

I saw that 'she' had a lot of sexually suggestive things on her Facebook wall, some of the posts that she made included 'Anyone interested in meeting up', a lot of boys in my class and school said things like, 'inbox me' or similar things. But at school, I heard someone in the year above tell someone else that the facebook profile is a teacher, when I first heard that I thought it could be believable. I haven't confirmed or denied the request yet, I have it sitting there.

Also, about a weekend ago, a kid in my year level had a party (I didn't go), but on the day back to school, there was an assembly for our whole year level about the dangers of partying, drugs, sex and etc. I think that it was too convenient for something like that to happen just after a party.

So, do you guys think this facebook profile is a teacher(s) at my school?