Hi David, How awful! That sounds like punishment (except the "criminal" was the professor!). PPT can effective as a guide or outline to the lecture or discussion. I think it is most beneficial for specific art, graphs, charts, drawings, schematics, photos, or illustrations of equipment, instrumentation, or procedures. For text, 3-4 bullet points that are general allow the teacher to amplify or expand upon the information. Anything more and it starts to become more like Professor Criminal! Barry Westling