Diane Ravitch, an education historian worried about testing students too much in America, is finding a growing audience.

Her social media base is in the tens of thousands now and she’s spreading her message in speaking engagements across the country. Her latest was today in Minnesota, where she spoke to the state’s teachers union.

“High-stakes testing is sucking the life out of American education,” Ravitch said. “High-stakes testing is driving every aspect of the corporate reform agenda.”

Check out Megan Boldt’s story on twincities.com here.