Not at all. Common Core only exists as horrifying anecdotes because it is “secret”, and both administrators and teachers must sign non-disclosure agreements. Of a school curriculum?
They use the excuse that it is “proprietary” to the company that created it. Therefore under no circumstances can parents or journalists see it. That is not just a red flag, but signal flares, flashing lights and klaxons that something is seriously wrong.
What snippets do leak out are often tales by confused children. “Anal sex sounds nasty. Why are they teaching it in my 3rd grade class?”
Non-disclosure agreements?
What? They can't tell parents what's in it?
I don't like CC but there is no restriction on parents seeing what's being taught, at least out here in California.