Not even the Catholic Church thinks Creationism should be taught (I'm Catholic if it matters) in school as science.
From Wikipedia: Here is viewpoint of the Vatican's chief astronomer, Fr. George Coyne, issued a statement on 18 November 2005 saying that "Intelligent design isn't science even though it pretends to be. If you want to teach it in schools, intelligent design should be taught when religion or cultural history is taught, not science." Cardinal Paul Poupard added that "the faithful have the obligation to listen to that which secular modern science has to offer, just as we ask that knowledge of the faith be taken in consideration as an expert voice in humanity." He also warned of the permanent lesson we have learned from the Galileo affair, and that "we also know the dangers of a religion that severs its links with reason and becomes prey to fundamentalism." Fiorenzo Facchini, professor of evolutionary biology at the University of Bologna, called intelligent design unscientific, and wrote in the January 16–17, 2006 edition L'Osservatore Romano: "But it is not correct from a methodological point of view to stray from the field of science while pretending to do science.... It only creates confusion between the scientific plane and those that are philosophical or religious." Kenneth R. Miller is another prominent Catholic scientist widely known for vehemently opposing Young Earth Creationism and Intelligent Design.