We didn't invent creationism, we invented the THEORY of creationism. It is simply logical: the chance of human life being founded in a universe like ours is so microscopically small, it was probably the work of a creator, who used the processes of evolution, the Big Bang, and natural selection like tools. It all fits. What atheists have done to science is cut religion out of it, to answer your question. If you consider some religious theories, a lot more makes sense.
Just because she has no business forcing her religious beliefs on people, doesn't mean they're stupid. Religion does not contradict science, and she's probably only misguided, and confusing being outspoken about her beliefs with actually teaching them as fact. Don't be so mean.
No, it's not. That's discriminating against people based on their religious beliefs. Religion does not contradict science, it actually helps it, and both entities shed a lot of light on the other. Counter wise, I could say that atheist teachers have no business teaching kids about world religions in social studies, but that would be just as stupid.