Speaking of mental arithmetic, I think many mothers have experienced or are experiencing hardships, especially children with "young children" at home. Mothers can't tell this "sad history" for three days and three nights.
The New York Times once reported the Japanese abacus mental arithmetic contest. A young child actually worked out the number 8, 186, 699, 633, 530, 06 1 with a small calculation. It's hard to imagine how this was worked out.
In domestic variety shows such as Super Brain and First Lesson of School, "abacus mental arithmetic champion" and "abacus mental arithmetic prodigy" emerge one after another, and abacus mental arithmetic is marked with "divine aura". Mothers were stunned by their own performance and envied "other people's children"; On the one hand, he was "exhausted" by this mental arithmetic and asked silently, "Why is there such a moth?" "I really can't think of the use of this' mental arithmetic'?" "How can children learn when they are so young?" ……
Then, the "abacus mental arithmetic" that I couldn't avoid when I was a child has made countless parents rush and have a headache. Should I learn? Let's take a look ~
What is abacus mental arithmetic?
The so-called abacus mental arithmetic is abacus mental arithmetic. Simply put, it is to use abacus in your head. The abacus is used as an auxiliary tool to perform operations such as addition, subtraction, multiplication and division, and combined with the skill formulas of "three times five divided by two" and "two times one plus five".
In the long-term training, the floating changes of the abacus disk, grade and number of beads are all depicted in your mind, just like a "virtual abacus" in your mind. Once you see or hear the topic, you can immediately complete the abacus in your mind, solve the problem quickly and get the answer.
It can help children master fast calculation skills and complete high and low digits and even complex elementary arithmetic in a short time. Therefore, it is highly respected by parents in kindergartens and primary schools.
Do you want to practice abacus mental arithmetic for your child?
Whether it is mental arithmetic or other kinds of early education classes and interest classes, parents almost all participate with the expectation of "letting their children win at the starting line". So, in answer to "Do you want to learn abacus mental arithmetic?" Make these questions clear first.
1. abacus mental arithmetic = good math ability?
In the definition of abacus mental arithmetic, we know that abacus mental arithmetic is mainly a digital operation using some formulas or rules, with the aim of improving the operation speed of people.
However, mathematical ability is not equal to computational ability, which is only a negligible part of mathematical ability, while logical reasoning, spatial imagination and abstract thinking ability are the important components of mathematical ability.
Therefore, it is actually very limited to use abacus mental arithmetic to improve children's mathematical ability.
2. mental arithmetic helps to improve memory?
Abacus mental arithmetic is a special mental arithmetic. Through the association mode of "perception-image-memory", children can quickly print out the position of abacus beads in their minds, which is equivalent to having an "invisible abacus" in their brains.
Once a memory-based problem is encountered, children can quickly write the number string in memory by association and decoding.
From this perspective, it is helpful to improve memory, but it is not irreplaceable. It is a new tool for children besides pens, paper, fingers and objects.
3. Do you want to give your child a mental arithmetic training class?
There is a trend in the domestic market, and parents hope to cultivate "psychic calculators" and "prodigies" through mental arithmetic. Therefore, the formula table came into being.
Earlier, when my nephew was in the stage of "young to young", driven by curiosity, my nephew bought him a copy in Taobao shop, which is said to be a "secret book" used by various training institutions. She thought it was "amazing". As a result, as soon as the goods arrived and opened, there was no formula for addition and division ... My sister-in-law immediately sent me a copy and began to vomit.
Indeed, these dense recipes make me dizzy and have a headache, not to mention children.
Recite the gobbledygook formula mechanically, forcing children to give up the correct mathematical operation rules and take the so-called artificial shortcut. In a short period of time, let children get high scores easily; You can also quickly calculate to a high position; But in the long run, the disadvantages outweigh the advantages. Because it violates the law of education, children aged 5 or 6 don't know arithmetic, let alone establish mathematical thinking, which will make children's thinking more chaotic.
4. Will you enlighten your child with your heart?
From the teaching level, abacus mental arithmetic is one of countless teaching AIDS. As long as it is based on scientific laws, it is a good enlightenment tool.
5. Cultivate children's interest in logarithm.
For young children, abacus is a learning tool and a novel toy. On the one hand, this interactive teaching can improve students' practical ability and learning interest; On the one hand, abstract mathematical operations can be concretized, which is helpful to teaching.
Children train and evolve from practical operation to simulation, and then internalize into imagination. Children learn to recognize numbers, read and write, and calculate. Every step is based on abacus, which can not only quickly form the concept of numbers, but also improve children's computing ability, that is, oral calculation.
6. It is easy to integrate with mathematics and narrow the learning gap.
The reason why there is abacus mental arithmetic in the curriculum of the Youth League is that it can let children master the relevant mathematical knowledge quickly. Once the teacher gives a little guidance, the children can draw inferences from others, which not only improves the learning efficiency, but also shortens the time for learning mathematical calculations.
Because the abacus is an auxiliary tool for learning, children can accurately understand important concepts such as numbers, digits, counting units, grades, etc. in the process of counting and recognizing numbers, so as not to become simple memories and avoid rote memorization.
When children grope for the abacus and gradually realize that the progress rate of adjacent counting units is ten, one, one hundred, one thousand, ten thousand and one hundred million, they can have a deeper understanding of the decimal counting method and will not be easily confused and mistaken.
Abacus mental arithmetic is a bridge between image and abstraction, which can effectively promote the establishment of children's initial concept of space and the development of image thinking.
For kindergarten children who have never learned Arabic numerals, sticks or other objects are needed. Once you learn abacus mental arithmetic, you can dynamically calculate the changes of beads in your mind and get the results quickly. This way can not only help children acquire knowledge quickly, but also fundamentally reduce their academic burden and narrow the learning gap.
7. Develop children's intelligence
The investigation and study of relevant authoritative organizations show that abacus mental arithmetic can promote the intellectual development of children and adolescents. After learning abacus mental arithmetic, children aged 4- 10 have obvious advantages in memory, three-dimensional thinking ability, innovation ability and calculation ability.
Mainly because children often need independent and focused thinking in the process of learning abacus mental arithmetic. In the long run, children's attention and memory are cultivated invisibly.
8. Improve hand-eye coordination.
Many parents will find a problem as soon as their children enter primary school. Obviously, it is a simple copy of the text paragraph, but the child spent thirty or forty minutes, and there is no way to complete it. The key is to finish copying, even if you don't care what the text says, you can read it while copying.
In fact, this is because children's hand coordination ability is poor, and their hands, eyes and brain can't be in balance at the same time.
In preschool, many parents hope to lay a good foundation for their children to learn abacus mental arithmetic. In fact, the benefits are greater, which can fully mobilize the child's sensory system and make all kinds of senses more balanced and coordinated.
Because in the process of learning abacus mental arithmetic, the teacher will ask the child to hold the pen in his right hand, dial the abacus in his left hand, look at the problem with his eyes and calculate with his brain. Over time, the ability of small hands to use their eyes and brains will get better and better.
9. Children's imagination is more abundant.
Many parents have encountered problems in school, such as the three-dimensional graphics and three-dimensional sense of geometry in middle school. The reasoning, disassembly and evolution of many patterns have caused headaches for countless parents and children. This is a test of our spatial imagination.
Abacus mental arithmetic is the mutual translation of numbers and abacus. When children see the topic, they will mobilize the "virtual abacus" in their brains to start mental arithmetic. With the combination of static and dynamic, children's imagination will be continuously developed, especially as the calculation time of numbers becomes longer and longer, children's spatial thinking ability will be continuously strengthened.
According to the development law of human brain cells, 70% of brain cells have been developed before the age of 3; 4- 12 years old fully mature. Therefore, the younger the child, the better he learns abacus mental arithmetic. Because the brain's intelligence is not stereotyped, it is very plastic. As long as the guidance is reasonable, children can easily produce psychological images in their minds and promote the growth of brain cells.
However, parents should also consider the child's physiological structure. Abacus mental arithmetic is a highly technical subject, which requires a high level of physical coordination and balance. If you are too young to study, it is easy for children to feel frustrated because of the immature coordination of muscles and nerves and the balance of hands. I thought about getting twice the result with half the effort, but it turned out to be an obstacle.
Here, parents are advised to wait until their children are at least 5 years old before learning abacus mental arithmetic.
Under the aura of "prodigy", many parents are eager to move, and they can't wait for their children to share a piece of the action. There are top-notch people in any field, but it doesn't mean that this training method is suitable for every child. Parents must make a study plan according to their children's actual situation. It is better to follow blindly than to look at the brilliance of others.
After all, every child is unique and has the right to pursue his dreams and go his own way, instead of becoming a "follower" after others succeed.