My take is that Common Core is designed to replace teachers. Eventually they will be replaced with “facilitators” who will be nothing more than mouthpieces for the Liberal-infested Common Core.
The way it often works is that administrators tell the teachers, “From this day forward, you will not teach as you used to. You will merely guide and facilitate.” In practice, that means that if the teacher simply states a fact, the teacher can get in trouble.
But mainly I want to mention the book “Credentialed to Destroy” by Robin Eubanks This is not light reading. In fact it is somewhat depressing because the progressives are so well organized and on the march...But it is an intellectual guide to all the mischief and criminality going on in the education world. If someone seriously wants to fight back, this book will tell you what the battlefield looks like. Go to Amazon to see the six reviews there.