Here's a nice video that combines humour and math with a little mythical earth history:
I especially enjoy the little bits of realism, like getting eaten by the Pythagasaurus. The problem with nerdy kids is that they don't have a healthy fear of the real world. Their math & science gives them a false sense of power and authority. The nice thing about art is that is can reintroduce these aspiring minds to the fact that math kills, like the Pythagasaurus. A little healthy fear is good for the budding scientist. And only the magic of art can help groom that fear.