Casey Barduhn, superintendent of the Westhill Central School District, warns New York Commissioner John King that his reliance on high-stakes testing is destroying the promise of the Common Core standards.

Barduhn wrote to King that he was intrigued by the standards when they were unveiled and hopeful that they would lead to creative and innovative teaching and learning.

But with the advent of the high-stakes testing, that sense of joyful anticipation was replaced by an undue emphasis on testing, test prep, and misallocated time and resources.

The rebellion against Common Core testing continues to grow. At some point, John King will have to listen to experienced educators nd change course. One cannot lead without followers.