The Arithmancy Classroom is set up just a regular classroom with desks, chalkboards, and diagrams of numbers and their magical properties. Professor Vector's desk is at the head of the room and the door to her office is to the left of her desk. There is an odd property to the room, everything from the desks, down to the number of stone tiles in the foor are all done in a certain number according to the magical properties that the number has.