"Intelligent design" or "creationism" has no place in a SCIENCE class.
"Science" is the act of developing a hypothesis and then setting out to prove it using empirical data.
"Creationism" is a faith based belief in a an omnipotent sentient "higher power" (typically referred to as "God").
As such, creationism is NOT the "Scientific Method" - it's NOT science, it's faith. Therefore it does not belong in a science class.
It DOES belong in a class on faith and philosophy, along with other world philosophies. I'll even go so far as to say that it belongs in public schools where there is strong community demand - provided that any class that caters to a SPECIFIC religion is NOT a "requirement". And that other forms of spirituality, including human secularism, as also available as classes if there is adequate demand for them.
Regards,
Andy