He put like 10 cd casses out on the floor in a circle, then he left the room, somebody would go and touch one of the cd's, then my teacher came back in and picked the one that whoever touched. Does anybody know how he did it?

Did the cd cases have anything on them that would pick up fingerprints?

No, he didn't look for finger prints and even when somebody barely touched it on the very corner edge he could still find it. He claims to be able to see the energy ora, but that's bull, he's nothing special

Does the classroom have windows on the wall or in the door XD

No, there's no way he could have seen inside the room.