If you folded a piece of paper in half enough times, it would eventually become thick enough to reach the moon. Perhaps you heard this anecdote in middle school during a lesson on exponential growth, ...

LEXINGTON, Ky. (AP) — Under the fluorescent lights of a fifth grade classroom in Lexington, Kentucky, Donnie Piercey instructed his 23 students to try and outwit the “robot” that was churning out ...