hmm, religion has always been a sensitive topic and i think it would remain that way forever unless all the people in the world followed one religion only. as for teaching religion at school, i think it wouldnt be a good idea to teach it at public schools since a lot of kids there come from different religious beliefs. but as for private schools, i think there wouldnt be a problem especially when the parents and students are fully aware of the kind of religion the school is teaching.
i dont think it would be a good idea to totally separate religion from education. in fact, its the best way to teach students, by providing a religious point of view in explaining the way of the world.