And on the 8th day, God said, "Me, I hate Mondays!"
Science is science, and faith is faith. The two are not necessarily mutually exclusive, but matters of faith have no place being taught alongside principles that have withstood repeated scientific challenges and testing. Evolution has met that standard; creationism and its offshoot, “intelligent design,” have not.
I'm still leaning towards the aliens-built-the-pyramids-and-had-sex-with-monkeys thing, but I'm open to other theories if they have merit.