We don't teach astrology in our public schools, nor do we teach the divination of bones. Voodoo is not taught as efficacious in medical schools. Nor is Sharia Law inherent in a sound law curriculum. Numerology is not mathematics. Natural science does not validate pantheism. Or Santa's North Pole workshop. Or witches and warlocks. Or Narnia.
Creationism emanates entirely from religious doctrine. Creationism is not science. Creationism is not testable, creationism is not a rational empirical model of reliably observed evidence that allows for constant investigations and reproducibly independent and accurate confirmations that creationism might be provisionally accepted as truth.
Given that creationism is risible religious drivel, creationism must never be taught in American public schools