Discover the abacus, a historic tool still vital in math, accounting, and education. Learn its usage, relevance today, and ...

Many teachers still rely on this centuries-old calculating device to provide a hands-on approach to math. For this series, we've been thinking a lot about some of the iconic objects that some of us ...

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 ...

Some local grade school students growing up in the computer age are using an ancient abacus to help improve their math, concentration, memory and time management skills. The UCMAS Mental Math Program, ...