"Both are theories on how the universe and life was created" Someone didn't pay attention in biology. Evolution has NOTHING to do with the creation of the universe (Big Bang) or the creation of life (abiogenesis). Evolution deals with how life changes over time.
We don't need to corrupt an innocent child's mind with a bunch of superstitious nonsense at school being 12 years old and in school myself I have decided that I want to follow the theory of evolution. If parents want their kids to follow creationism I respect that but they have plenty of time to do it at home and/or at church in fact anywhere else but a school.