Teachers keep books and stuff in it.
cupboard
You cut with them.
scissors
Light and air come through it.
window
You write with it.
pencil
The teacher writes on it.
board
You bring things to school in it.
school bag
You come into the classroom through it.
door
You rub out with it.
rubber
You make a line with it.
ruler
You stick with it.
glue