We all have a worldview. What is yours? What is your preconceived idea about the important questions about this universe/world...even if you do not recognize that it is a preconceived idea. Think about it.
Mine is that there is a God who designed nature and its laws to a greater or lesser degree. I cannot accept that it happened blindly and by chance (more or less). I believe in meaning apart from us.
Assuming you are an atheist, what would your worldview be? Naturalism?
What do you expect to find at the beginning of our world/universe through science? God or rocks, mutations, energy etc? or if you don't accept any view, the view you "neutrally" fall to will be your preconceived idea since regarding God (and particularly the Christian God) You cannot be neutral.
Both view points are invisible literally but each one of us bring that view point to the way we look at the meaning of life and even the study of science.
For example: If I did science, I would expect it to be ordered and to be able to find evidence of God's handiwork.
If an atheist/naturalist does science, he assumes that it was not made and therefore he searches for possibilities of the universe/world making itself and somehow finding order amongst itself.
Both follow evidence, both are possible views for arguments sake.
Though, some people believe religions such as theism and atheism should be kept away from science classes. Quite reasonable to think this in some aspects.
But how is this achieved?
As I pointed out before, our worldviews affect our outlook on science and the world. How then can we keep our worldviews from science rooms? I don't think we can. Therefore why is it so bad to teach Intelligent Causation and Atheistic Naturalism as philosophical companions to science and let the children decide where the evidence points to...IC or AN? Each child's outlook will influence their search and their inferences about the origins of our universe/world.
I am annoyed about a possible bias that science will play toward a "neutral" atheism and its related beliefs about the universe.