You're the instructor you should give a good reason why calling is better than shoving
1. you're out of position which is never good. (1st reason he can exploit you)
2. you're correctly playing scared money, don't know how to phrase that properly but getting itm is worth passing up on some slightly chipEV spots. (2nd reason he can exploit you)
3.when you miss the flop, and most of the time you do, you lose the pot (you can obv bluff once in a while bla bla but mostly you're losing)
4.When you do hit 1 pair or a flushdraw and get a lot of action its not even a supergood situation.
5. Even if calling is good shoving must be better.
why do you think it is such a great spot for him to 3bet? it is because it is a bad spot for you to call.
Your reason for calling was because folding makes you exploitable, calling does not change that.
Ask aeron who you said is playing a fairly "loose game" what he thinks about calling this close to a bubble.
btw thanks for responding, overall i think this was a great series and this was the only hand i really disagree with.