The teacher must be able to observe all students at all times and to monitor work and behavior. The teacher should also be able to see the door from his or her desk.Frequently used areas of the room and traffic lanes should be unobstructed and easily accessible.Students should be able to see the teacher and presentation area without undue turning or movement.Commonly used classroom materials, e.g., books, attendance pads, absence permits, and student reference materials should be readily available.Some degree of decoration will help add to the attractiveness of the room.