Check out this article:
http://dianeravitch.net/2013/02/26/why-i-cannot-support-the-common-core-standards/
I particularly like this quotation by Diane Ravich.:
"I have come to the conclusion that the Common Core standards effort is fundamentally flawed by the process with which they have been foisted upon the nation.
The Common Core standards have been adopted in 46 states and the District of Columbia without any field test. They are being imposed on the children of this nation despite the fact that no one has any idea how they will affect students, teachers, or schools. We are a nation of guinea pigs, almost all trying an unknown new program at the same time.
Maybe the standards will be great. Maybe they will be a disaster. Maybe they will improve achievement. Maybe they will widen the achievement gaps between haves and have-nots. Maybe they will cause the children who now struggle to give up altogether. Would the Federal Drug Administration approve the use of a drug with no trials, no concern for possible harm or unintended consequences?"
