I think this article is a fascinating and enjoyable read. It's a few years old, but I hadn't come across it before.

An Indian physycist, Sugata Mitra, installed a PC with a fast internet connection in the wall of a building in New Delhi. He just left it there, with no explanation, to see what the kids growing up in the slums would make of it. What do you call a mouse pointer, for example, if you don't even know that the thing you're using is called a mouse?