Anthony Cody spent 24 years teaching in Oakland California and now leads workshops focused on Project Based Learning. He has written a critique of Common Core Standards that I think is well worth reading.
Closest to home here in kindergarten is the one he discusses in Error #2 where he points out that "no experts on early childhood were included in the drafting or internal review of the Common Core."
Elsewhere he states that Common Core was "backmapped from a description of 12th grade college-ready skills." Kind of like designing an automobile starting with the clear coat and working back to the paint, then the sheet metal. It's the wrong approach, folks.
The 10 colossal errors of the Common Core regime:
Error #1: The process by which the Common Core standards were developed and adopted was undemocratic.
Error #2: The Common Core State Standards violate what we know about how children develop and grow.
Error #3: The Common Core is inspired by a vision of market-driven innovation enabled by standardization of curriculum, tests, and ultimately, our children themselves.
Error #4: The Common Core creates a rigid set of performance expectations for every grade level, and results in tightly controlled instructional timelines and curriculum.
Error #5: The Common Core was designed to be implemented through an expanding regime of high-stakes tests, which will consume an unhealthy amount of time and money.
Error #6: Proficiency rates on the new Common Core tests have been dramatically lower—by design.
Error #7: Common Core relies on a narrow conception of the purpose of K-12 education as "career and college readiness."
Error #8: The Common Core is associated with an attempt to collect more student and teacher data than ever before.
Error #9: The Common Core is not based on any external evidence, has no research to support it, has never been tested, and worst of all, has no mechanism for correction.
Error #10: The biggest problem of American education and American society is the growing number of children living in poverty.
Link to Anthony's post in Education Weekly