Hi Daniel: Good suggestions, all. Physical models or just about anything that be passed around to augment your discussion isreat. And with PPT, I always use main bullet points in a large font, and use the reveal feature, so each bullet point appaers as it's own on the slide. This allows me to discuss, elaborate, make references to other resources, media, or exercises, etc., before moving on to the next point. I always try to think about how my lessons will seem from the students perspective. I try to make every lesson, memmorable, enjoyable, interesting, and provided with the necessary content. Regards, Barry