SAMAglobalJan 10, 20211 min21. What is the abacus skills classification?Like many other fields, abacus has its own graded exam and verification system. Currently, there are at least 100 organizations or...
SAMAglobalJan 9, 20215 min22. An Overview of Two-hand MethodAbacus Association of China stresses that using two hands to operate abacus serves two main functions: increased speed over the one-hand...
SAMAglobalJan 8, 20215 min23. An Overview on One-hand MethodAlthough abacus originated in China, 1-4 abacus was a Japanese innovation. Taiwan and Korea very likely imported the one-hand abacus...
SAMAglobalJan 7, 20212 min24. Feasibility of Two-hand MethodSometimes, parents of left-handed students would want to know whether their children can learn abacus using their left hand to write and...