Just correcting your logic here - Intelligent Design makes no mention of any particular God or religion, it simply states that an outside force(probably divine in nature) was the cause for gradual changes in species.
Correct, Intelligent Design doesn't mention religion, but it appeals to the creationists as a way to try to market creationism and not have it look like creationism. The fact is that Intelligent Design has no scientific evidence, and is not a scientific theory, and so doesn't belong in a science class.