This story is being touted as an example of suppression of free speech by the “fundamentalist Christians”, and for good measure why church and state should be kept separate.

A seventh-grade social studies teacher in Presque Isle who said he was barred from teaching about non-Christian civilizations has sued his school district, claiming it violated his First Amendment right of free expression. . . .
[Gary] Cole alleged that complaints by “a small group of fundamentalist Christian individuals” led to the creation of a curriculum “which never mentions religions other than Christianity and never teaches the history of civilizations other than Christian civilizations.”

Eugene Volokh sets this one straight here. He notes that schools generally have the right to specify their curriculum and teachers are bound to teach according to it. However, he notes some caveats about limited education (or strictured) being a bad thing. Unfortunately, there are a lot of unknowns in this story, so it’s difficult to make a judgment that the school’s curriculum is poor or not. That said, I agree with all the “Ifs” that Volokh brings up.