I actually had this exact experience in a civics class in junior high school -- in 1979! We pored through the stock listings in a physical newspaper every day for several weeks and recorded our buy and sell decisions. The "winner" bought a penny stock which went from 1/8 to 1/4 in a day (or something like that). And I did in fact learn exactly the wrong lesson from that because 20 years later I lost a fair bit of money in the dotcom boom trying to replicate that strategy.

It is very hard to come up with a teaching strategy that can overcome survivorship bias.