Here are some relevant court cases...

teachers must abide by the school district's curriculum...i.e. follow the science and not one of a multitude of religious beliefs.

Link: https://www.freedomforuminstitute.org/about/faq/can-a-teacher-refuse-to-teach-certain-materials-in-class-if-heshe-feels-the-curriculum-infringes-on-hisher-personal-beliefs/