Teaching evolutions flows from the priniciple that we should teach children the truth, which often means teaching them what humans understand to be true about the universe.
Evolution is a theory and a fact.
Evolution is both a simple and deep concept. Not such a big deal. Yet in the 3.5 billion years of our planet, much variation flows from this mechanism. Below follows an ERIC digest about our topic. ED402148 Mar 96 Teaching Evolution in School Science Classes.