seats
tables
blackboard
computer monitor
overhead projector
projector
notice board
door
no smoking sign
lights
telephone
clock
light switches
projector screens
ceiling tiles
vents
newspaper
styrofoam cup
desks
window
blackboard erasers
garbage can

Classroom

The Online Photo Dictionary: seat, table, blackboard, computer monitor, overhead projector, projector, notice board, door, no smoking sign, lights, telephone, clock, light switch, projector screen, ceiling tile, vent, newspaper, styrofoam cup, desk, window, blackboard eraser, garbage can

seats seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat seat no smoking sign notice board garbage can telephone clock light switches door projector window tables table table table table table vents vent computer monitor overhead projector newspaper styrofoam cup blackboard erasers blackboard eraser projector screens projector screen desks desk desk desk light switch lights light light light light light light light light light light light light ceiling tiles ceiling tiles blackboard light