It's time to face the ugly truth: the readership of Observational Epidemiology tends to run more than a little nerd-heavy. That's okay. With the success of the Big Bang Theory, geek chic has never been less uncool.
So there's no reason not to check out this list of math-based games I put together for beginning teachers. You can even go here and find still more.
Of course, I still wouldn't mention it around the cool kids.