Add Yahoo as a preferred source to see more of our stories on Google. Fifteen years after the calamitous rollout of the Common Core math standards, the once-derided strategy has proven its staying ...

South Dakota's proposed math standards are sparking debate, with critics saying they're too simple and lack guidance.

Add Yahoo as a preferred source to see more of our stories on Google. Illustrative Mathematics was established in 2011 at the University of Arizona as a means to assist schools in adopting the Common ...