Greg Laden’s Blog has an excellent article, “Teachers Under Fire,” about resources for teaching evolution. I particularly like one of the comments from a former teacher in the United Kingdom:
The correct response to the intervention of any of the brainwashed is: “Either you are parrotting someone eles’s lies, or you are, yourself, lying.”
Point them at all the avilable resources, and remind them that at least 99.999% odf all biologists, and 99.9% of all scientists, on the basis of huge amounts of evidence, are convinced that evolution, as presently understood (and that bit is important) is the only available explanation that fits the known facts.
“If you have some previously-unknown facts that upset this view, we’d be VERY happy to hear them – but, be warned, we already know that every so-called “point” raised by the cretinists (including the DI) is false.”