“In the U.S. if you make a choice between a better teacher and a smaller class, you typically choose a smaller class,” he said. “In these countries, they save on the class size, but they get the best people to become teachers.”

A new policy announced by the Department of Education bars younger students from using artificial intelligence, but stops short of a moratorium.

A cautionary tale about motivated research, the politics of data interpretation, the problems translating data into policy, and the fetishization of quantification. Or, why money isn’t the main problem.