Elementary teachers can create opportunities throughout the day for students to strengthen their math knowledge.

About 10 years ago, Alan Garfinkel, a professor in the life sciences department at the University of California, Los Angeles, got a call. It was from his dean, who said that the department had ...

Update: After this story originally ran, the Florida education department issued several screenshots of “problematic examples” in the textbooks. “These examples do not represent an exhaustive list of ...