Great Resource Here--lots of articles such as on above pic to help you see what's been going on:
Flip through Common Core--Resources All About The New Education System http://flip.it/CP.hsK

Go Figure--Here are a few articles to give an overview of Common Core:

Common Core:  A Scheme to Rewrite Education

https://www.thenewamerican.com/culture/education/item/16192-common-core-a-scheme-to-rewrite-education

It's No Longer About Education--Just Look at the Math

https://truthinamericaneducation.com/common-core-state-standards/common-core-math-problems/