In a short time frame like that I believe a lot of the topics suggested above require more time then you'll have. My suggestions, which falls right into yours, is to teach them how to learn. While it seems like it's implied, very few people in society these days have the ability to learn on their own. In the DIY community this is extremely easy, given the plethora of how-to's and guides out there. I would say your first topic should be effective search techniques, part of learning is weeding out all the bad information and knowing where to find it. I myself believe the concept of "Teaching" is a dying art, as the true goal of it is to promote "Learning" which can be done any place at any time. Unleash the power of the Internet and the global community and maybe they'll go far. "Give a man a fish; you have fed him for today. Teach a man to fish; and you have fed him for a lifetime." Some good resources for the job, howstuffworks.com, ehow.com, wikihow.com, about.com and google.com. From those, one could amass the knowledge our ancestors only dreamed of. Hope that helps and good luck.