This is an awesome design for classroom doors/bulletin boards! The hot trend is Pokemon Go, so why not incorporate that into your room?
The sign says "Gotta Teach 'Em All!", which is a play on Pokemon's slogan, "Gotta Catch 'Em All!". There are Pokeballs which have each student's name on it. There is also a guide on how to morph the teacher's face onto a Pokemon! An all around fun and cool design.
If you have any questions at all, feel free to contact me here: rileywalz (at) me (dot) com. Thanks!