Working in secret for more than two years, a group of mathematicians has set out to resolve of the longest and most bitter ...

Back to school should feel like popping champagne—not hiding in the pantry with a calculator and a box of tissues. When our little darlings head back to class, we want them to be confident, curious, ...

FORT LEE — For 10 seconds, a series of 50 random three-digit numbers flashed on the screen. After another second, abacus master Jeonghee Lee announced she'd finished the mental addition, correctly ...