High tech

Just glanced into one of the labs to see one of the science teachers using an interactive whiteboard (cost £800), AV projector (about £1100), installation (£500-ish), sound system (£150-ish) and computer (£400-ish) to simulate... a blackboard. Black background, white scrawled text, etc.

OK, yes, I know you can use it for other things, but it seemed very silly somehow.