On their own, the girls realized that their allowances could cover minor purchases. Favor investing over trading. In Greer's games, trading took a back seat to analysis. The girls spent much time discussing reasons to own a company's stock before they bought or sold. Let the kids lead.
Some teens know a lot more about money than others.
This particular group knew more than Greer expected, so she let them ask questions freely. All of which is not to say the camp was perfect. A marathon session on bonds, for instance, drew yawns. Now that's something I would buy. I know what she means.