"So now you are ignorant of the argument of the separation of Church and state? "
Evolution doesn't say anything one way or the other about God. It is not in conflict with the idea that God guided evolution but God is not mentioned because has left no scientific evidence of his existence preferring that we have faith.
Lacking such evidence it would be innapropriate to teach about God in a science class.
I never advocated teaching about God, what if UFO's did it? However it seems to me from observation that the fear of God is the fuel behind evolution.