I was pleased with the 'class' and the outcome.
I made up some visuals (gun rules printed each on a large sheet of paper - large font and appropriate photos I found on the internet) which I posted above the 'gun' table. Uncovered rules one at a time as we talked and the class progressed.
We spent maybe 45mins in the garage, all ammo in separate location, weapons triple checked empty by me.
First rule we did was 'trust no one including yourself that the weapon is empty - assume they are all about to go off until YOU personally check it is safe'. Talked, demonstrated, asked participants to demonstrate. Explained the consequences of not following this rule. Mentioned real life happenings. Tested them "here, this weapon is unloaded" and handed it to them - to see that they checked it, and properly & thorougly, themselves. Had a revolver, several pistols and 2 rifles so a good range of firearms to handle and discuss.
Next the finger off the trigger rule. Talked, demonstrated, tested, explained consequences and 'what can happen'.
Next - muzzle awareness - discussed importance, some situations, how easy it is to sweep people and property accidentally, tested by asking them to pick up pistol and safely move muzzle downrange without sweeping past everyone. Used dowel rod to help show where bullet is going if careless. Caught a few 'rule 2' trigger finger infractions during this time, corrected immediately.
Had them recite the 3 rules I gave them so far, then covered some other rules as previously posted, some range safety rules, home storage etc.
Then to the range. On drive over, asked them to recite rules again.
Had them load one firearm at a time with one round under close supervision. Following range rules, then allowed them to fire on target, watching for any violation. None. so on to 2 and 3 rounds in mag/cylinder. A little less closely on supervision. (standing back but watching like a hawk). A couple finger violations, one muzzle direction violation. Immediate correction and no more violations the rest of the hour. Progressed to full magazines. Revolver jambed so unloaded it, put it away for inspection later. Shot pistols and rifles for an hour+, had a great time. All safe, lots of smiles.
Guy with an M1 offered youngster to shoot it. Should have asked him later if our guy followed the rules, bet he did.
Am following up this week with reminders, videos on safety.
Let me know if I need to do anything different.