Age puzzles go back to antiquity. They challenge us to figure out how ages fit together into a pattern, using a blend of ...

NPR's Ailsa Chang speaks to mathematician Eugenia Cheng about the Pascaline -- a 17th-century invention credited as the first mechanical calculator.

Researchers from Drexel University’s School of Education will join peers from Ursinus College and the 21st Century ...

California's new math instruction framework may look unfamiliar to parents, but once parents understand the family- and ...