Should evolution be taught in schools?

Evolution is just a theory, but creationism is also a theory should it not be taught as well?

"Creationism" opens a whole religious can of worms which does not benefit public schools.  Saying "GOD put it there." is only really useful if one has an idea who "GOD" is, but there's no way to really know that until everyone's dead, or He comes down with an official text book hand-delivered to the schools (even that, many non-believers will try to chalk it up to a publicity stunt).

Unless you have a religiously-biased school, I see no advantage to teaching creationism at all.

However, explaining that evolution is only a theory, and not undisputed fact, should be mandatory, as with all scientific theories.