( 1)
1. Know the abacus, know the names of each part, learn the posture of the abacus and the correct method of holding the pen.
2.0~ 10 understanding, disk diagram, pearl image diagram, fingering learning, pearl thinking, composition decomposition.
3. Direct addition and direct reduction:
Practice on the abacus first, add and subtract 3~6 strokes of a number.
One-digit analog mental arithmetic
Two-digit analog mental arithmetic
Three-digit 2~3 different numbers are not added or subtracted.
(2)
1. If it is full, add five, and if it is broken, subtract five (the next five is rounded off, and the last five is rounded off), master the concept of making up the number (two numbers add up to five, which is called making up the number), and practice mental arithmetic on the abacus.
2. Add and subtract to give way and master the concept of complement (two numbers add up to 10 is complementary,) abacus mental arithmetic.
(3)
1. If you break the 5-digit addition, you will lose 5 when you abdicate.
2. Break the five-digit addition, abdicate more than five, and subtract the mental arithmetic.
3.3~5 mental arithmetic of adding and subtracting two digits
Let's talk about the advantages and disadvantages of learning abacus mental arithmetic:
Excellent: 1. It is beneficial to improve memory ability and cultivate attention. The speed and accuracy of abacus mental arithmetic depend on the length of time and the depth of traces in the brain. 2. It is beneficial to improve computing skills.
Disadvantages: 1 The classroom atmosphere is rather dull, it is difficult for children to calm down and there are few teaching AIDS. 2. Children do not have a good grasp of the concept of quantity and the combination of quantity and number. 3. Because abacus mental arithmetic is based on skilled abacus mental arithmetic, and then a quick algorithm of 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. My suggestion is:
1. Mental arithmetic is boring to learn, and it is difficult for children to sit still. Parents need to review exercises after class, otherwise the course can't keep up. The course of abacus mental arithmetic 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.
2. It is difficult for children who have learned addition and subtraction to get rid of the original mathematical concepts and imagine the abacus of abacus calculation. This will bring great disadvantage to learning abacus mental arithmetic, and parents will not understand whether he has an abacus in his mind when doing simple arithmetic. When it comes to increase or decrease, it's too late to know that he doesn't have an abacus in his heart, or to use past experience to calculate.
3. The difference between mathematics and abacus mental arithmetic: It is more interesting to learn mathematics, but the practice between classes is not particularly important. Its teaching system is helpful for children to establish abstract logical thinking ability, give them some preliminary mathematical knowledge and skills, and develop their intelligence. Various teaching methods can be used to cultivate children's interest in mathematics, but these may not be obvious to parents at this stage, unlike children who can quickly calculate and add and subtract multiple strokes after mental arithmetic is completed. Both of them have different teaching objectives and effects.
It is best not to learn abacus mental arithmetic.
What is abacus mental arithmetic? It is to set up an abacus in children's minds and turn abstract calculations into beads on the abacus of images.
After mental arithmetic, children can easily calculate the addition and subtraction of hundreds of digits. But what I want to ask is
1. What is the purpose of children's mathematics and science education?
2. What is the practical significance of letting children learn to calculate the addition and subtraction of percentiles?
3. The addition and subtraction of one percent can be calculated by abacus mental calculation, and the relationship between quantity and quantity can be clarified, and whether the transformation process can be equivalent.
4. Does mental arithmetic cultivate talents or stifle creative talents?
Through mathematics learning, children can understand the meaning of quantity, the relationship between quantity and quantity, and the conditions and process of transformation between quantity and quantity; Understanding the abstract concept of numbers can distinguish the connection and difference between abstract concepts and entities. Can understand the principle of abstract symbol system and know the relationship between symbols. Children's mathematics education is to guide them to distinguish their similarities and differences from various entities, sum up a vague image from the characteristics of some entities, such as the same color, the same hardness, the same side and the same size, and then clearly turn it into an abstract concept. Then guide them to establish the relationship between entity and this abstract concept, and guide them to understand the relationship between these concepts. This is the study that can best train people's comparative analysis, induction and generalization, and logical reasoning ability in early childhood.
But abacus mental arithmetic is only a solid entity calculation model, what can it do? > & gt
Question 2: How old is the best age for children to learn abacus mental arithmetic? 1. Conceptual abacus mental arithmetic is also called abacus mental arithmetic or abacus mental arithmetic. Abacus mental arithmetic is a method of turning numbers into abacus beads in your mind for calculation. It is developed on the basis of abacus calculation. At present, it is very popular in Southeast Asia, and Taiwan Province Province, Singapore, Malaysia, South Korea and other places have mushroomed to set off a wave of mental arithmetic. In recent years, abacus mental arithmetic will set off a new research upsurge in Chinese mainland. The mental arithmetic ability of abacus comes from brain images, and children themselves can actually feel the improvement of mental arithmetic ability. Therefore, abacus and mental arithmetic have stimulated children's thirst for knowledge from one digit to multiple digits. Through abacus mental arithmetic training, children can not only learn a special and beneficial calculation method, but also cultivate good study habits, inspire brain intelligence, strengthen thinking ability in images, communicate left and right brains, and make the development of the whole brain tend to be balanced and coordinated, thus being more creative. Beginners learn abacus consciously, and then they can do it unconsciously and automatically. Anyone can do it. Then according to the image of the abacus, draw it in your mind and start practicing mental arithmetic. Through years of practice, it has been proved that learning abacus mental arithmetic at the age of 4-5 is the best. The general limit is about 10 years old, and once the brain image disappears, it cannot be regenerated. Preschool children not only don't understand the concept of number, but also have no impression of number. In order to let children understand the concept of number, it is necessary to use special tools such as abacus as teaching AIDS. If you teach them abacus, it is easy to produce abacus images, but as they get older, they will produce their own digital images. Teaching them abacus mental arithmetic at this time is easy to cause confusion, so it is ideal to learn abacus mental arithmetic from an early age. Note: It is best to learn abacus mental arithmetic when you are 4-5 years old. The general limit is about 10 years old, and once the brain image disappears, it cannot be regenerated.
Question 3: Is it useful for children to learn abacus mental arithmetic? Is it beneficial? Should they learn? If they can really learn abacus mental arithmetic, it will certainly be of great help to their children in the future, but it is up to the children themselves to decide. If children don't want to learn, don't force them, because if children are forced to learn by adults, they will definitely get worse and worse. Everything should go with the flow, don't encourage them, or it will harm their lives. Advice when you are unhappy is good for action, and medicine when you are in pain is good for illness. Listen to me.
Question 4: Is it good for children to learn mental arithmetic? At what age should I start studying? Learn Zhu's mental arithmetic, timely and accurately, cultivate brain function, read and count from time to time, and stimulate learning enthusiasm and initiative. In middle school, I was always in a positive thinking state and an active position in my study. Sometimes I used abacus to calculate, sometimes I interspersed with group competitions, sometimes I answered questions and got grades, so I became smarter, and sometimes I listened and watched to see who counted fast. Abacus mental arithmetic is an educational method.
Question 5: How old can a child learn abacus mental arithmetic? It doesn't matter! First, it is not very important to improve children's ability. Just master a method. Second, the exam involves very little. If I guess correctly, your child should be in primary school ... junior high school and senior high school don't learn abacus at all, which means that abacus is decoupled from future study and life ... Third, there are few places where abacus is used now, and accounting is used in universities ... Even if abacus is used in future employment, it will be 10 years later.
Question 6: How old did children start to learn abacus mental arithmetic? Let's first understand the learning process of children's abacus mental arithmetic:
( 1)
1. Know the abacus, know the names of each part, learn the posture of the abacus and the correct method of holding the pen.
2.0~ 10 understanding, disk diagram, pearl image diagram, fingering learning, pearl thinking, composition decomposition.
3. Direct addition and direct reduction:
Practice on the abacus first, add and subtract 3~6 strokes of a number.
One-digit analog mental arithmetic
Two-digit analog mental arithmetic
Three-digit 2~3 different numbers are not added or subtracted.
(2)
1. If it is full, add five, and if it is broken, subtract five (the next five is rounded off, and the last five is rounded off), master the concept of making up the number (two numbers add up to five, which is called making up the number), and practice mental arithmetic on the abacus.
2. Add and subtract to give way and master the concept of complement (two numbers add up to 10 is complementary,) abacus mental arithmetic.
(3)
1. If you break the 5-digit addition, you will lose 5 when you abdicate.
2. Break the five-digit addition, abdicate more than five, and subtract the mental arithmetic.
3.3~5 mental arithmetic of adding and subtracting two digits
Let's talk about the advantages and disadvantages of learning abacus mental arithmetic:
Excellent: 1. It is beneficial to improve memory ability and cultivate attention. The speed and accuracy of abacus mental arithmetic depend on the length of time and the depth of traces in the brain. 2. It is beneficial to improve computing skills.
Disadvantages: 1 The classroom atmosphere is rather dull, it is difficult for children to calm down and there are few teaching AIDS. 2. Children do not have a good grasp of the concept of quantity and the combination of quantity and number. 3. Because abacus mental arithmetic is based on skilled abacus mental arithmetic, and then a quick algorithm of 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.
My suggestion is:
1. 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 course of abacus mental arithmetic 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.
2. It is difficult for children who have learned addition and subtraction to get rid of the original mathematical concepts and imagine the abacus of abacus calculation. This will bring great disadvantage to learning abacus mental arithmetic, and parents will not understand whether he has an abacus in his mind when doing simple arithmetic. When it comes to increase or decrease, it's too late to know that he doesn't have an abacus in his heart, or to use past experience to calculate.
3. The difference between mathematics and abacus mental arithmetic: It is more interesting to learn mathematics, but the practice between classes is not particularly important. Its teaching system is helpful for children to establish abstract logical thinking ability, give them some preliminary mathematical knowledge and skills, and develop their intelligence. Various teaching methods can be used to cultivate children's interest in mathematics, but these may not be obvious to parents at this stage, unlike children who can quickly calculate and add and subtract multiple strokes after mental arithmetic is completed. Both of them have different teaching objectives and effects.
It is best not to learn abacus mental arithmetic.
What is abacus mental arithmetic? It is to set up an abacus in children's minds and turn abstract calculations into beads on the abacus of images.
After mental arithmetic, children can easily calculate the addition and subtraction of hundreds of digits. But what I want to ask is
1. What is the purpose of children's mathematics and science education?
2. What is the practical significance of letting children learn to calculate the addition and subtraction of percentiles?
3. The addition and subtraction of one percent can be calculated by abacus mental calculation, and the relationship between quantity and quantity can be clarified, and whether the transformation process can be equivalent.
4. Does mental arithmetic cultivate talents or stifle creative talents?
Through mathematics learning, children can understand the meaning of quantity, the relationship between quantity and quantity, and the conditions and process of transformation between quantity and quantity; Understanding the abstract concept of numbers can distinguish the connection and difference between abstract concepts and entities. Can understand the principle of abstract symbol system and know the relationship between symbols. Children's mathematics education is to guide them to distinguish their similarities and differences from various entities, sum up a vague image from the characteristics of some entities, such as the same color, the same hardness, the same side and the same size, and then clearly turn it into an abstract concept. Then guide them to establish the relationship between entity and this abstract concept, and guide them to understand the relationship between these concepts. This is the study that can best train people's comparative analysis, induction and generalization, and logical reasoning ability in early childhood.
But abacus mental arithmetic is just a solid entity calculation model. What can you exercise when you have children? > & gt
Question 7: How old is a child suitable for learning abacus mental arithmetic? Don't put too much pressure on children. Today's children are almost out of childhood. Ask the child's opinion first. If he is interested, he will get twice the result with half the effort! View original post >>
Question 8: At what age is it best for children to learn abacus mental arithmetic? Generally, mental arithmetic is over 5 years old (5.5 -6 years old is the most suitable).
Why? ! ! Most 16-year-old children (about 70%) have reached the junction of intuitive thinking and understanding thinking, which means that many 6-year-old children will start to think slowly and will not say what they saw before.
First, mental arithmetic can guide children of this age to think at this stage and give them a special way of thinking. Generally speaking, mental arithmetic is to solve problems with pictures, which is very helpful for this age. For example, you must have a good imagination and keep the story in your mind, so that the articles written will be more vivid, not to mention learning geometry, because this way of thinking is easy to understand.
Second, it takes a lot of time to learn abacus mental arithmetic. Generally, in kindergartens, children in large classes (or next semester) have more free time to teach, and there is not as much homework as primary one and secondary two.
You can also choose to start learning abacus mental arithmetic at the age of 4 (but I personally think it is only suitable for 20% of students)
First, this age is not suitable for learning, and it is in the stage of intuitive thinking (of course, a strong child will be precocious mentally), but if you can also learn some basics for him, but don't do homework and practice, it is recommended to use listening and calculating, because there is not much problem with listening and speaking at this age, so write-,for listening and calculating, we read from a height, so abacus mental arithmetic is suitable for listening and calculating (abacus mental arithmetic).
Children over 7 years old learn abacus mental arithmetic.
You can consider studying! ! ! If your child has enough energy, or you have time, you can also choose, but running on both sides is a little tired! ! !