I need more info on that for a skeptic.
Here’s a website that has pretty good info about the evils of Common Core. In a nutshell, it is an an educational system posing as “standarization” but is in reality an indoctrination tool to promote ideologies beneficial to political interests. One example was getting students to pose as a Nazis commander and write about the evil of Jews. Another was getting students to wear burkas to make them sympathize with Muslims. the examples are endless:
http://usapolitics.thoughts.com/posts/common-core—3