Elementary school students who learn to calculate using a mental abacus tend to perform better on math tests than their peers. A recent study published in Learning and Individual Differences suggests ...

I am sometimes consulted by parents considering middle school entrance exams about the Kumon method and the abacus."If my ...

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 ...