If your school is like mine, I had to be really careful not to block any fire alarm signs, sprinklers, or exit lights. Once everything was hung up, I asked my new best friend J (our maintenance guy) to come inspect my room JUST to make sure that it would pass the official review. It passed so now my room looks like this!
I also set up my furniture in my classroom in order to get a feel for the size of it. If you look in the second picture I have three tables on one side of the room with two on the other side of the room. Should I leave it like that or make a U shape with them?