The Interactive Black And White Boards And Science Teaching
When I walk in a seminar or lecture room, it looks mostly as 30 or 40 years ago. Then lifting my eyes I would notice that the "data"-projector is still there hanging from the ceiling, in addition to the overhead projector covered by chalk dust in the corner. The rooms are still dominated by various green- black- or sometimes white- boards, in most cases serving as source of kilograms of chalk dust per decade - or more - I did not measure, but that seems reaosonable, some 200 g per year. But that is not the main point now. My point is what happened with all the "smart" boards, interactive…