I don't know what common core is trying to do. I have yet to actually see a common core workbook. My only exposure to it has been here, on FR, where it's taken out of context.
32 - 12 = 20. Yes, we all know this, and it's simple to do from memory. Then someone provides evidence of common core teaching another approach to solving the very same problem (which is kept simple on purpose), and my fellow FReepers immediately and irrationally jump to the unsubstantiated conclusion that the fundamentals have NOT already been taught in a previous chapter of the very same workbook.
If we want to put forth a logical and rational reason to reject the centralized control of common core, ignorantly knee-jerking into a two minute hate routine over a misunderstood math problem isn't the way to go about it.
“”I don’t know what common core is trying to do. I have yet to actually see a common core workbook. My only exposure to it has been here, on FR, where it’s taken out of context.””
Google Common Core Math and you’ll be inundated with more problems and their way of solving them than you possibly have time for. Don’t depend on FR - there is lots of info available. I’ve spent a lot of time on different sites and the samples just keep getting worse and more ridiculous.