Good ideas, but too much for one hour [I’ve given lots of presentations in my time, just not many on pinball]. Suggestions:
Choose a machine with simple rules but also with both modes and a multiball. No EMs, no modern Sterns. Something like TAF [not Gold version!] might be a good choice, it’s got both and it’s a very common game. It also has most of the features you want to illustrate in a relatively visible layout, e.g. clear mode shots, kickout choices, etc.
“K.I.S.S.” - - save the advanced techniques for those interested afterwards. Just do bounce, post and tip passes. Skip forehand vs. backhand or sometimes not flipping upper flipper.
Explain the difference between practicing to get “somewhat better” and practicing to get “a lot better.” The “somewhat” version allows more “fun” with not staying on the same machine so long and not practicing the same technique several times in a row. This is more like the casual golf, bowling or tennis lesson. The “a lot” version is more like hitting a few dozen sand shots from the same trap, shooting for just the ten pin all game on your first ball, or hitting backhands with topspin for several minutes at a time. Serious players do more “reps” when they practice, but this is only useful once they’re mastered the basics.
Specifically draw attention to the “you’ll score worse at first” angle, and suggest that practicing in an environment where you’re not paying for each game helps, e.g. at a play-all-day for a fee show or location [e.g. an Expo or a Nickelrama] or at someone’s home.
Don’t get into cradle separation, up and under, etc. yet, either. Not in class 101.
Do point out using multiball to advance towards other things; I’d mention finishing cities in AFM or going towards Crank It Up on MET as particularly good examples.
Manage expectations. Nobody gets really good at anything overnight, and pinball’s no exception. Improvement requires a time investment. If you’re having fun while investing the time, you’ll be willing to invest more time. Also point out that there’s no “right” level of skill to shoot for. It’s all a personal decision about how much time and money investment is worth it TO THEM. If they just want to get good enough to make their quarters last longer, that’s perfectly fine. If they want to go to the league or tournament level, that’s fine, too, but each requires a progressively larger investment.
Great points generally, though! Good luck!
Bob