If you go this route, make sure you buy from a reputable dealer, one that has been in business for some time and has a record for quality. There have been cases of mail-order houses offering incredible deals, but only because they were using damaged or inferior parts. Projection Units One piece of hardware that a school should work toward purchasing is some type of projection unit. Such units usually take the form of an LCD panel or a regular television monitor. The former is a transparent panel that sits atop an overhead projector.
Image quality is high, but so is the price.
A regular television monitor linked to the computer, on the other hand, may be a better option. The resolution is not as good, but the price is better. Remote controls are available so that a teacher is not restricted to her computer as she is teaching. Start by cabling all the computers together in an office. Then expand to connecting all the computers in a building.