I can understand studying the Bible as literature. You can't really understand European and American literature and art without understanding some of the stories. And some people don't know the significance of a serpent tempting you with an apple or the seven plagues of Egypt. But turning it into a bible study for Christian kids is taking it too far. It needs to be taught as stories, not history. That can be done objectively, so that it doesn't offend believers, but it doesn't seem to be the case here.