In ancient times, in order to count, people learned to tie knots and engraved orthographic records. In the Qin and Han dynasties, the birth of China’s first mathematical work, “Nine Chapters of Arithmetic,” played an epoch-making significance for the future development of mathematics.
In modern times, because of the development of industrial civilization, calculators, computers and other computing tools have been invented. People rely too much on computing tools, which reduces their ability to perform mental arithmetic. Taking European and American students as examples, they use calculators when doing math problems or math exams.
How to make children like to add, subtract, multiply and divide? The invention of the San Su chess, with three elements, three different colored numbers is enough to form a triangle to expand the operation to get the corresponding number on the board to get points. Allows children to exercise their mental arithmetic in games.
Because San Su chess need three people to play, a family can give up their mobile phones, computers and other electronic products, and they play games together happily, making the interaction between family members more and more. San Su chess will enter the Asia market on 2020,will enter the global market will in 2021.