Video consist of interviews with parents whose children were traumatized by Common Core.

Video is a bit long at 22 minutes but please watch it all. You will understand why a little girl might carve the word STUPID on her arm.

(I think the smart strategy is not to negotiate with Common Core, not to accept any part of it. The people behind CC are relentless, as the video makes clear. They will play games, and rename things, and offer to reconsider, but they will just keep pushing all the same ideas.)

Note: for reasons unclear the 22-minute video is unavailable. So try the PREVIEW,  which is only 7 minutes:

https://www.youtube.com/watch?v=vyP2PZk-XFg

PS. On a personal note, I've been campaigning against Common Core for six years. It was clear to me that it would be a disaster. But I'm engaged in many debates with people on different sites. I see one big problem more clearly. Many people in education  simply accepted the whole sales pitch as divinely revealed fact.  Caveat emptor?  I listen to ads on television and spend $20 for something that turns out to be junk. Okay, you would say I should know better but that's just $20 and I was willing to take the chance. But accepting Common Core means you might be destroying a whole school system and replacing it with something worse.)