Here are two good resources on Common Core.?? The first is an excellent, concise explanation from John Stossel:
The second is from Dr. Duke Pesta and Mrs. Mary Black and is good, and a longer explanation:
About The Author
Seth Grossman
Atlantic City, NJ Attorney since 1975. Executive Director of Liberty and Prosperity since 2003. GOP Candidate for Congress, NJ State 2021, 2018. Adjunct Professor of Government & History at Atlantic Cape Community College 2010-2017. Contact sethgrossman49@gmail.com (609) 927-7333