This was posted on Twitter by Daniel Willingham, a well-regarded psychology professor at the University of Virginia who focuses his research on the application of cognitive psychology to K-12 schools and higher education.

He was appointed by President Barack Obama to the National Board for Education Sciences, the independent and nonpartisan arm of the Education Department that provides statistics, research and evaluation on education topics.

Willingham is the author of several books, including “Why Don’t Students Like School?” and “When Can You Trust the Experts?” He also blogs here, and his posts have appeared frequently over the years on The Answer Sheet. He can be reached at, and you can follow him on Twitter @DTWillingham.