sure but you have some limiting beliefs there,
how would MM not work in HS? all the theory still applies,
meet girl open her, when hooked, break report(neg her, tease her,make off hand comments that can be taken sexually)/tell dhv stories, or actually demonstrate dhv's don't brag though, if you are bragging your doing it wrong, it is storys that have subtle dhv spikes laced in them, then qualify and isolate (ask her to do something 1 on 1 outside of class) if she wont qualify/isolate, she is not attracted to you, simple as that, if she flakes freeze her out 2weeks, game more girls, add more to your number pool, gain more social proof as a result,
once you have isolation with girls, ground yourself, establish commonalities, pump BT(put them in a good mood),flip frame sexual, sexually qualify them, and seduce (you can also just physically escalate to sex without sexual frame/qualify)
just ask girls to come over to your house to watch a movie if they agree, then they know what your after, if they ask to bring friends, say no just me and you, they get the hint,
now all of this shit is not necessary, qualification/isolation is all you need to see if they are attracted, once alone at your house, physical escalation should be enough
make sure you know how to handle LMR also, because you will surely encounter resistance
but even better here is vid for you on closed systems, this will probably be more useful for hs/closed social circles then MM, but MM is still workable in pretty much all scenarios
http://www.youtube.com/watch?v=D6MxPx6DBaM