if you want to somehow get back at the teachers/school/administration then stop showing them it gets to you..
shrug it off like it's nothing and shove an A+ up their ass on your next paper. if you do quality work and don't get good grades then you can be mad, but you can't be mad until you try your best.
or you can go the slacker route (not recommended for your future). being the kid who gets like all A's and a few B's but never seems to be doing any work has worked for me. I work my ass off when i can, yet I come across as a slacker at least during class. Gotta love watching the kids work so hard and then showing them up with an A on a test while they think I do no work whatsoever haha