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 ...

The abacus is considered the oldest calculating device used by humans but in the 1940s, a Korean man invented an abacus-like counting method using fingers called jisanbeop or chisanbop, a term that ...

Ever dreamt of solving math problems in your head with the speed of a calculator? Mental math might seem challenging, but it's a skill attainable through the right tools and techniques. The abacus, an ...

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 ...

A learning center is teaching kids, aged three to 13 years old, how to learn and better appreciate math with the use of an abacus, a manual computing device, that helps them keep track of numbers and ...