dont be stupid. save the pot for afterschool. You do not realize how important your education really is right now. The fact that you can not handle the two together already, means you need to stop smoking during classes. dont even try to do both, it isnt worth it. who wants to be a dummy for the rest of your life? get good grades, get a good job, and grow your own and smoke all you want then! you have years and years to be stoned, dont blow it too early...

speaking from expirience... and a teachers point of view...