There are certain rules and formulas in the skill of transporting beads. When the user can skillfully operate the abacus, he can not only get the correct answer quickly, but also describe the disk type, grade and floating change of the abacus in his mind through the growth of brain cells. This vivid abacus image is called "virtual disk". It completes abacus calculation in the brain through the process of perception, image and memory, which is what we call abacus mental calculation.
Extended data:
Abacus mental arithmetic itself has the characteristics of grouping calculation, which can undoubtedly help children who have difficulty in calculating large numbers to master the concept of logarithm and overcome the phenomenon of children counting one by one. Abacus mental arithmetic has the characteristics of "five liters decimal system", which greatly reduces the carrying difficulty.
Abacus mental arithmetic has the characteristics of operation model, which is helpful to improve children's computing ability. The operation of abacus mental arithmetic is a collaborative process of various sensory organs and motor organs, which requires the close cooperation of eyes, ears and mouth. So as to promote the development of the corresponding parts of the cerebral cortex closely connected with it and improve the intelligence level of children.
Abacus mental arithmetic is inseparable from mathematics. Abacus mental arithmetic is a unique computing system based on mathematical principles, using abacus as a tool and using abacus to represent numbers. Mathematics is an abstract thinking activity, and it is difficult to learn mathematics because of poor abstract thinking ability in childhood. Integrating abacus mental arithmetic into primary school mathematics is conducive to solving the problem of difficult mathematics learning in the enlightenment stage.
References:
Baidu encyclopedia-abacus mental arithmetic