Teachers really like the ability to display their iPad or their students’
iPads on a projector screen. Projecting on a large screen is great for demonstrations, simulations, explanations, and showing examples. There are several ways this can be done in the classroom. Read the post for more information and for a handy chart.
Though the main players still work more than adequately for displaying your iPad, this article from Tony Vincent contains information about a couple of newer entrants. The comparison chart is a great aide for schools looking to begin using display technology.