The vision desk is more complicated than the phone and can do different jobs. It also contains a camera and a screen. The glass on top of the screen is made in a special way so that when you write on it, the camera can photograph what you write.

School work would be impossible without the vision desk. When the teacher writes a sum on the blackboard, the figures are shown on the desk.

To answer the question you take your electronic pen and start writing on the desk.

If the teacher sees that you are going wrong, he or she can correct you.

All the school work that is done on the vision desk is recorded on a giant school computer.

Note: Just wait until you see just how giant that school computer is.