Which religion's creation story should be taught?

If we are to have every other creation myth taught as an alternative or even comparative method of determining ultimate origins, when will we find time to teach the actual science of biology??I'm all for exposing children to the exploration of world beliefs/cultures/philosophies, but would this not be better done within the context of a comparative religion class?Where will we draw a line? Should crystallomancy or crystalotherapy be taught in geology and first aid??Saying that, I do understand the point that various other posters were making when they suggested this.Cheers folks