I'm with Christopher Hitchens on the idea that it is ridiculous to refer to a "Christian" child or a "Muslim" child. Children are born atheists. They are literally "branded" by the beliefs of their parents. If they escape, they typically have the psychological scars to prove it.
I have tried to not teach my children to be atheists. I don't attend church with them, and I have explained that I don't believe in Mormonism. What I hope to show them is that there is another way in the form of science and reason.