A lot of schools have smart boards that are kind of like smart markerboards.
There's usually 4 markers, and the display tells which marker is being used, basically by the markers being on a button and the system keeps track of which marker was removed last.
Then there's a projector to actually display what's on the board.
There's usually 4 markers, and the display tells which marker is being used, basically by the markers being on a button and the system keeps track of which marker was removed last.
Then there's a projector to actually display what's on the board.