1, which accords with the development and movement law of children's auditory vision.

Children are characterized by fun, strong curiosity and intuitive understanding of things. When learning abacus mental arithmetic, this concrete, intuitive and vivid counting tool is not only a teaching aid, but also a learning tool and toy for beginners. When they come into contact with the abacus, the strokes of the beads are calculated and the movements of the beads are changed. Just like playing games, it is fun and attractive, and it can also cultivate a strong interest in learning.

2. Stimulate children's learning enthusiasm and initiative.

Another feature of children is that they are active and competitive. In the process of learning abacus mental arithmetic, sometimes reading, sometimes calculating, sometimes calculating, sometimes listening, sometimes watching, sometimes answering the results, and also interspersed with group competitions to see who can calculate quickly and accurately, so that children can always be in a positive state of mind and take the initiative in learning.

3. Improve attention and memory.

In abacus mental arithmetic teaching, the vivid memory of bead schema is constantly strengthened, which greatly stimulates the right brain and fully develops the sleeping human right brain, which can improve the baby's attention and memory.

Second, the shortcomings of mental arithmetic:

1, the algorithm is inconsistent with the current algorithm.

As we all know, abacus mental arithmetic is calculated from high to low, that is, from left to right, while vertical calculation is from low to high, that is, from right to left. It goes without saying that there is a certain conflict between the two.

2. Children's patience.

Learning mental arithmetic is boring, and it is difficult for children to sit still. Parents need to review exercises after class, otherwise the course can't keep up. The abacus mental arithmetic course is closely related. If you don't master the last class, you won't be able to keep up with the next class, resulting in a vicious circle.

3. The formation of thinking inertia mode.

Because abacus mental arithmetic is a fast algorithm based on abacus mental arithmetic proficiency, which is performed in the brain, and then conditioned reflex is formed, and the result is obtained directly through mental arithmetic, so to learn abacus mental arithmetic well, we must first master abacus mental arithmetic skillfully. This will make some children who can simply add and subtract mental arithmetic, because they can't do mental arithmetic skillfully and can't form mental arithmetic pictures in their minds, so they can't do mental arithmetic.

Extended data:

Abacus mental arithmetic principle:

Abacus mental arithmetic is a unique computing system based on mathematical principles, using abacus as a tool and using abacus to represent numbers. Numbers and beads are symbols. Abacus mental arithmetic has only three symbols, namely 1, 5, 0; Mathematics has 10 symbols, namely 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. In mental arithmetic, symbols are input and symbols are output.

Both abacus mental arithmetic and mathematics adopt decimal calculation method, and abacus mental arithmetic only adds a "five-liter system" that plays a regulating role. The operation is based on addition and subtraction within 20, multiplication and division in the table, and some laws and properties in the four operations are applicable. The process of mental abacus calculation is completed by the comprehensive application of three thinking forms: logical thinking, image thinking and inspiration thinking.