Sharing ideas visually is no new concept. A hundred years ago, teachers used chalkboards. Then, with the invention of the smelly, dry erase marker, we upgraded our boardrooms and classrooms with shiny whiteboards.
Then along came old fashion projectors, and we wrote on clear plastic, shining the ideas up on a pull-down screen. Years later, the projector has gone the way of the chalkboard though, because now we have digital projectors! “But wait!!” you say. “What about SMART Boards?!”
Via Gust MEES