Hi John: PPT can be a very powerful tool, but it can just as big of a distraction too. Poorly planned PPT's that don't inform can't compensate by appearing as a big bright image on the screen. I think the best PPT's are those we create ourselves. have 5-5 main bullet points, a colorful bcakground with contrasting font color, and perhaps some images (photo's, charts, or graphs added for variety. The worst PPT snafu I've seen is teachers who simply read the slides. It would be better to present a couple of points and then discuss in more detail with the class. I like it when the students get up and discuss points(and the teacher can always fill in missing information. Engaged students retain information better when they participate vs. passively sitting and listening. Regards, Barry