Evolution was not permitted to be taught during the 1930's. A proof of that and one of America's important historical events was the Scopes Trial. A biology teacher was trialed and found guilty for teaching evolution. Nowadays, people have different views about how this world came to be. I completely respect that and dont judge people for their beliefs. But, I dont think it's fair to only teach evolution or only teach religion. Students will eventually learn about evolution in their science classes, but I think they also have the right and choice to learn about religion in schools too. It doesnt have to be mandatory to take it, but if there were like elective classes, then that would be fair for all. Some students might take the religion classes just to kind of learn about it and see the other views, if they wished. It is a good chance for students of different views to be able to learn and see the other views available.
So therefore, my opinion is that both evolution and religion should be taught in order to be fair! :)