A controversial new movement promoting the "science of math" has come into the math establishment's crosshairs.

On a breezy July morning in South Seattle, a dozen elementary-aged students ran math relays behind an elementary school. One by one, they raced to a table, where they scribbled answers to ...

This story was produced by The Hechinger Report, a nonprofit, nonpartisan news outlet focused on education. The Hechinger Report is a national nonprofit newsroom that reports on one topic: education.

This story is part of a series reported by AL.com, The Associated Press, The Christian Science Monitor, The Dallas Morning News, The Hechinger Report, Idaho Education News, The Post and Courier in ...