Why go Wireless?
There is no need to wire and rewire to be able to have access to the network in a classroom. In the long run it is cheaper to go wireless. To add a new computer to the network all one would need is a wireless card. Teachers, Administrators and students would be able to go to any classroom and not have to worry if they have all the proper cables and if the room was wired for computer access.
Adding on to the network can be done without having to redo all the wiring like a hard wire lab.