How to intro Effective Altruism

Hey,

So I am about to go be one of the camp leaders on a winter camp of a youth movement. I have been given the opportunity to plan a set of late evening activities for the older kids (targeted at the 13-16 year olds). The format of this will be 30 minute sessions over three nights where we split up the kids into groups of mixed ages (usually they’re in school-grade groups throughout the day).

I’m planning on making it lightly educational (since we’re running these for half an hour starting at 10pm), but want to make them all on the topic of effective altruism.

So does anyone have any suggestions about how I can introduce a group of teenagers to the idea of effective altruism in 1.5 hours spread across three evenings?