When asked what one piece of technology every classroom needs, I used to answer “an LCD projector.” Now, though, I think it’s more electrical outlets.
I recently visited this classroom in New York that had electrical outlets spaced every six inches all around the room. There must have been at least 30 or 40 outlets. (It used to be a science room.) I think that this one simple thing adds as much to ease of integration as anything.
It’s the little things.
If there's one thing every classroom needs….