If you like your textbook, you can keep your textbook

Krista Kafer writes that

If Common Core were voluntary guidance rather than state-mandated standards and PARCC assessments were one of many measures a school could use to track performance, there would be little controversy. Educators would regard them as useful tools. As they stand now, however, these one-size-fits-all requirements reduce professional and parental choices in education and impose heavy costs.

If you like that textbook, don't count on keeping it.