I've worked with various incarnations of the Common Core in the classroom for five years, and I can attest to the unmitigated disaster it is, conceptually, practically, and instructionally. In theory it was designed to implement universal content instruction into the national public school system to provide balance and equality to the nation's collective student body. In reality it was designed by bureaucrats and consultants who have nary a clue about classroom learning and teaching. The saddest result, aside from the unfathomable waste of time and effort the CC has caused, is the amount of tax dollars frittered away on its design, promotion, and forced inclusion into the country's school system.