I have a teacher, shes cute, perfect ass. Its an all-guys school so this is the best thing we got in the building. I want to run the cube routine on her and get to know her a little bit. Is this a good idea? I think its a good cold read to set you apart from the other students and could even get you some rep from the teacher. What do you guys think?

I'm far from an expert so if someone more reputable gives you different advice here I'd say go with them. Now that I've gotten that out of the way, I don't think it would be a good idea. The cube is a comfort-building routine. You don't want to get further into the comfort zone. In her professional interest, she has to maintain a certain distance from her students psychologically and emotionally. If the only thing you have to push things in a direction beyond the typical student-teacher relationship is comfort building I doubt it will work. At best, you'll come across as the sweet kid who has a teenage crush on his teacher.

I'd take more of an attraction-building approach. When you think there's enough attraction built I'd go with a VERY subtle sexual rapport break, something that will cause sexual tension between you but that you could also just as easily shrug off as having never intended it to be sexual if it backfires.

After that, build the sexual tension, being very subtle to test the waters at first. Then you'll have to subcommunicate that no-one outside of the 2 of you will or could ever find out. I should also say that if you ever did succeed you should stick to this. Don't go bragging to your friends or tell anyone because it would completely ruin her career. To be honest, you really shouldn't do this at all. There are more than enough girls your own age around (yeah, I say this AFTER going into detail about how I think you could do it...). Seriously though, it's probably not a good idea. It's just that typing this stuff up helps me understand the various different dynamics in social interactions myself.

id probably game it as usual. doubt she is any different than any other woman, i just dont know where "student" status puts you in her mind. but i doubt she would care if you did your game right anyway.