Really? I gave seminars for about three years back in the late 1990's. I used Power Point. I learned how to use it by opening it up and firing away. It is simple. I could teach the average high school student how to use it in ten minutes. What's the big deal with Power Point?
Go ahead. Show him templates, transitions, slide masters, animations, photo import, movie import, and how to do technical drawings in 10 minutes. And then lets do some overlays which show the light paths through a 12-channel distance measuring interferometer.