What are you talking about?
Believe it or not, there ARE people who don't want evolution to be taught as fact. Sure, shed light on it...but keep in mind that is A THEORY. And a flawed one at that.
Gravity is also a theory.
Unfortunately "evolution" is a name given to a lot of different things, even what amounts to philosophical theories. And at the higher end of evolution teaching there is, I think you would agree, quite a lot of speculation, and beyond that there are evolution teachers that go way past what is known scientifically.
So a lot depends on precisely what you teach as fact when it comes to evolution. Could you summarize what you believe are the facts of evolution?