Summit Global 

What is a nine-bead abacus? It is also a kind of abacus teaching aids. The abacus tools used by countries around the world to promote...

There are always polarized opinions about the good and bad of abacus learning. Those who disagree think that abacus and mental arithmetic...

Many people questioned why in the age of computerization we should still learn the ancient calculation tool of the abacus? This is the...

Abacus and mental arithmetic are an easy discipline to get into, but a hard one to master. In addition to the basic addition and...

Abacus was traditionally used in Asian countries for commercial purposes. About 40 years ago, electronic calculators and computers...

Over the past 100 years, the invention and progress of civilization and technology have far exceeded the sum of human history. The most...

How to select a good abacus and mental arithmetic education center? ​ 作者：廖正輝 Author: David Liao ...