What to do with ID? Well, if someone brings it up, I can obliterate it in class, but what would that accomplish?
I am now finishing up my first unit on the nature of science and the scientific method. My students have been shown the information on what science is, some of its major historical developments and what science deals with. I hope my students will take heed that science deals with the natural world and what we can detect in it.
I tell them right out that we do not deal with religious ideas in science because they are supernatural and science is unable to deal with them. Any ideas brought up that deal with natural events given a supernatural cause,though, are treated scientifically and the evidence for or (for the most part) against can be discussed.
ID is not scientific and can only provide a slippery slope when thrown out of misguided conviction into science. If we cannot figure something out right now, then a "designer" did it! So why try to figure something out at all!?!