Here is a link to the common core standards so you can see what they really are.

I know at my school, we are looking at the implementation very carefully, and it is not going to be a dumbing down of things, rather a spread of literacy and math standards across ALL classes, not just language arts and math classes. This means more reading and writing in all core classes (non-electives). It is amazing how little essay/critical writing most students now get in schools.
I do not agree with all of the things in them, but given what I see coming into my classroom in terms of student preparedness in math and writing, I am hopeful that this improves things.