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Carol Burris tells the story of the birth of the opt out movement. Contrary to the take in the mainstream media, parents started opt out, not unions. Parents continue to lead opt out. In 2015, the leader of the Néw York State United Teachers, Karen Magee, endorsed opt out shortly before the testing began. The organization and groundwork had already been out in place by parents.
Look for larger numbers of parents opting out in 2016. Thus far, their children have won nothing but more testing and empty pronises.