The correct resources may make learning mathematics engaging and dynamic, and the abacus is one such resource that aids kids in developing their computation abilities. The ancient counting device ...

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 ...

Photo Caption: A Japanese abacus (soroban) held over an older style Chinese abacus (suan pan). Photograph by Forrest M. Mims III. Can the old-fashioned one-room schoolhouse provide new lessons for ...

When I was a kid learning arithmetic the only visual aid I remember is flash cards. These were useful for memorizing single-digit addition and multiplication, but is memorization really the best ...

1946: The United States Army holds a contest pitting a Japanese abacus user against a soldier using an electric calculator. In four out of five rounds, the abacus wins. The soroban or Japanese abacus ...