Crystal McMachen, a middle school math teacher in Rapid City, told board members she worried the standards were ...

The South Dakota Board of Education Standards unanimously approved revisions to the state’s math standards Monday in Rapid City, even as a math teacher flagged some problems state officials acknowledg ...

Fifteen years after the calamitous rollout of the Common Core math standards, the once-derided strategy has proven its staying power, with many states holding onto the original plan or some close ...