PORTLAND, Ore. — Nearly two decades ago, Miwako Sakabayashi opened the doors to her Portland-area Japanese Abacus Math School. Today, Sensei Miwako continues to teach local kids how to tackle math ...

Among high school students and adults, girls and women are much more likely to use traditional, step-by-step algorithms to ...

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 ...

I recently read, with great interest, several articles on “Common Core” math. Another attempt to try and improve math skills in a country that does so poorly compared to other countries in the world.