The point of education is to provide knowledge, not affirm truth. The beauty of freedom is that each may make their own decision once they're exposed to knowledge. Thus, yes. Evolution should be taught in schools. But so should creationism and other relevant topics, each presented with the facts that support them. Force-feeding children everything as 'fact' is in fact a serious untruth. We don't honestly KNOW if Evolution (In it's current theoretical state) is 100% correct, nor can we prove or disprove that Creationism is correct. Eduction is learning to think for yourself. Being presented with facts and learning to make educated decisions of your own.