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 ...

Check out this cool iPhone app from Japanese coder Kako-san. In many parts of Asia, the Abacus is still used today, mainly to teach maths, so Kako-san decided to make an abacus app for the iPhone.

Know the top 5 free abacus learning apps for kids in 2025 to improve math skills through fun and interactive tools. These are best to build strong number sense, enhance concentration, and make ...

For this series, we've been thinking a lot about some of the iconic objects that some of us remember using — if only for a short period of time — in our early schooling. Slide rules, the recorder, ...