Everyone almost agreed that the reason was that the child was "careless". I think the child is still young and does not do his homework carefully. Maybe the child can do his homework carefully when he is older, and the calculation accuracy rate will naturally be improved.

Mathematics teacher Zhou Xia

Frequently, friends ask me: Why is the calculation error rate of children so high? How to improve children's computing power?

Have we delved into the reasons?

Everyone almost agreed that the reason was that the child was "careless". I think the child is still young and does not do his homework carefully. Maybe the child can do his homework carefully when he is older, and the calculation accuracy rate will naturally be improved.

Mathematics teacher Zhou Xia

So is the reason for the error really just careless? Can children be naturally as they grow older?

is of course not.

Children's calculation error rate is high, and there are many reasons, including subjective and objective reasons; there are external and internal reasons.

psychological reasons.

oral calculation is the basis of calculation, while oral calculation must complete the task through a series of psychological activities such as observation, attention, perception, memory, and feedback.

is usually:

(1) Observe carefully, and the operator symbol is wrong, treating "+" as "×", treating "-" as "+", etc.

(2) Perceive things inaccurately and write numbers that look similar as another number, such as 3 as 8, 6 as 9, 325 as 235, etc.

(3) Not focused, people are doing homework, but their hearts are playing.

(4) Memory failure, such as forgetting the number on the carry or the number on the abdicate in addition and subtraction in advance or the number on the abdicate.

(5) The role of thinking fixed, you think you do whatever you learn, and you don’t carefully understand the practice requirements.

math teacher Zhou Xia

2. Mentality reasons, some children think that they can understand oral calculation without learning, or they just need to master the methods. They don’t want to practice in daily life and find it boring and boring. It doesn’t matter if they calculate wrongly in daily life. With a lucky mentality, they can do it right if they are serious in the exam.

3. Reasons for learning habits, some students do not review questions, analyze, or think during calculations, are eager to answer questions, are unwilling to write and write nonsense, write sloppy and sloppy, omit important steps, and are too lazy to check and verify after calculations.

math teacher Zhou Xia

4. Teaching reasons:

(1) I did not grasp the calculations of addition and subtraction within 20, resulting in the failure of students to pass;

(2) Students were not proficient in the multiplication formula of ; I did not practice the high-frequency questions for getting married;

(3) Students did not master the order of mixed operations;

(4) The teacher did not analyze the students' mistakes and found the real cause and prescribe the right medicine;

Based on my years of teaching experience, the following three methods have been summarized to truly help children improve their oral calculation and calculation ability:

Mathematics teacher Zhou Xia

1. The practice of grades one to four must be persistent

"Frozen three feet, not a day's cold". Any knowledge mastery depends on a certain amount of exercises, and the same is true for calculation.

Grades one to two in primary school are key periods for practicing oral arithmetic, and we need to guide children to practice scientifically and continuously.

oral calculation practice can not only develop children's memory ability and thinking ability, but also develop children's scientific observation and analysis ability. Therefore, oral calculation is not a simple calculation, but a training of comprehensive ability.

In my daily teaching, I will use a high-frequency question bank according to the progress of the mathematics classroom, and practice for 5-10 minutes every day. If I persist for one semester, I will definitely see the changes in my children.

Grades 3 to 4 are the key time periods for practicing writing calculations. You should practice 5-10 questions on vertical writing calculations every day. There is no need to do much, but try to do everything right every day. The calculation foundation of

is laid very firmly.

math teacher Zhou Xia

2. You should remember the time of oral arithmetic exercises for grades one and two

When practicing grades one and two minus time, it is very important to record the time. It makes the child feel a sense of tension and can make the child concentrate and complete the task quickly.

You can try it. If you don’t count the time, most of the children do it slowly. Once you use the stopwatch to time, you will feel a sense of urgency and the speed will be much faster.

So we need to record the time spent by children every time, so that children can keep working hard to break through themselves and strive to get faster than each other.

The oral arithmetic exercises I give to the children will have a record of time and accuracy, including dates. The children's progress every day is clearly visible in this table.

Let’s take a look at the first month of first grade enrollment, the oral arithmetic training table within 5, and intercept some questions:

3. Find questions in wrong questions

In practice, we need to look at the wrong questions of the child and analyze why the child did it wrong? Is it because of a lack of serious attitude? Or is there any knowledge point that has not been mastered well?

For example, when children are doing pen calculation exercises, they find that mistakes often occur in subtraction and abdication. For example, if 44 is subtracted by 17, the child 4 borrows 1 from the ten digits after minus 7, but when the numbers on the ten digits are subtracted, they often forget the borrowed one, which leads to the wrong calculation.

After discovering the problem, we can specifically talk to the child about the calculation method of subtraction and abdication, so that the child can practice this more.

can also tell your child’s math teacher to seek help from the teacher.

Mathematics teacher Zhou Xia

When children practice, we can correct their attitude, take calculation practice seriously, and develop the good habit of "one look, two think, three count". In this way, the computing power can be improved.

Mathematics teacher Zhou Xia

In short, we practice for a long time and unremittingly through the correct method, lay a solid foundation for calculations, and improve the calculation accuracy is something that all children can do.