Hi William: I think you bring up a good point about our role as teachers. I find I learn from my students frequently. When we put on blinders to only what we think, we are limiting the full and robust bouquet of learning possibilities that could be experiebced if we included student particiapation in the instructional plan. In fact, when student are allowed to "teach" selected components of a class, there will be great benefit to the student, their classmates, and perhaps our own respository of stored information for use in the classroom or our own workplace information. Regards, Barry