Ask, "What should i do, not what do I do now that I did wrong.
ASK BEFORE ACTING.
Unfortunately -
very unfortunately - it can never work like that.
Because ... a beginner doesn't know what he or she
needs to know. That's the crux of the problem. It's only
after a screw-up has been made, that the tyro realises that there
was something that they needed to know, but weren't aware of that beforehand. Put another way: "you can't possibly know beforehand what you genuinely don't know - so therefore you can't ask questions about it."
My suggestion is to educate by demonstration, rather than trying to anticipate or list potential problems, (say) by running through a typical inspection. Starting-off with a weather check, and the significance of approaching weather fronts etc.; asking the important question of "
why is this inspection being carried out ?", what might we expect to see, and so forth ...
Then move on to the smoker - how to light, fuel to use - a look at bee-suits, veils and other forms of protection.
Ok - use of the smoker (or not), opening the hive, where to stand, how to pull and handle frames/combs, need for gentleness/smooth movements, what exists within a typical comb, what things to look for, and so on and so forth ...
Then - how to reassemble the hive without crushing bees - in fact everything that beekeepers do and take for granted. Try to remember how scary opening a hive for the very first time is for the beginner, and just how scared most beginners are of 'doing something wrong'/ killing bees/ losing control and so on.
Having run through a typical inspection, you might then want to look at setting-up an apiary, with all the usual requirements/caveats. Maybe then look at hive types and variations. Comparison of frame-based vs. top-bar beekeeping.
Then perhaps run through a typical year - what happens when - swarming and so forth - feeding issues - maybe how to introduce a mailed-queen. Nucleus colonies vs. package bees - how to install both. And so on.
Suggest you enquire of the audience "who already has bees ?" - which should give you some clue (maybe ?) about existing beekeeping knowledge in the room - but if even a single person hasn't got bees, or has zero experience then it's reasonable enough to cater for total absence of knowledge in your talk.
Hope at least some of the above is useful - sorry if I've been saying the obvious - just trying to help ...
LJ