NPR's Ayesha Rascoe plays the puzzle with Mark Karp of Marlboro Township, N.J., and Weekend Edition Puzzlemaster.

Proven methods for teaching the readers who struggle most have been known for decades. Why do we often fail to use them?

While humans evolved to perform routine endurance activity, recent secular trends in the United States and globally have resulted in a dramatic rise in the amount of time spent inactive in both ...

Snow continued to shape the holiday season in Washington, but it did little to slow community spirit as families gathered ...