To say that evolution has not answered all the scientific questions regarding our origins does not suggest you have to teach creationism in schools as a scientific theory. What should be taught is an honest assessment of what science does and does not know regarding our beginnings. The questions regarding our origins are too big for science alone to answer. People of faith should not allow themselves to be relegated to an anti-science position for questioning Darwin. Questioning the validity of theories is what science is supposed to do.
Creationism is a religious belief... It shouldn't be taught in public schools!