The ability of verbal calculation is a basic quality of primary school students. Poor oral calculation ability will inevitably affect the accuracy and speed of written calculation, and 60% of mathematics learning of children in lower grades of primary school is computational learning. In addition, the practice of oral calculation can also improve children's memory, especially the addition and subtraction of three digits. Only by remembering the numbers can the calculation be correct; At the same time, it can also exercise children's thinking flexibility.
How to improve oral arithmetic ability
Home-school Lianxinqiao said: Parents should first pay attention to the method of children's oral arithmetic practice, that is, practice "speaking", "reading" and "writing" three times respectively to achieve the three requirements of clarity, speed and accuracy.
The logic of "saying" should be clear.
In the first oral arithmetic practice every day, parents can pick out several cross arithmetic problems and let their children talk about how to calculate them. The focus of this kind of exercise is to see whether the child's understanding of oral calculation is clear, which is the basis of correct and fast oral calculation, and at the same time avoids mechanical oral calculation practice. Generally speaking, the oral calculation in lower grades adopts the methods of making up ten and making up one hundred or formulas. Parents can also read math books or communicate with teachers to learn other methods. When children learn some oral arithmetic methods, they can concentrate and stimulate their interest in oral arithmetic, which is helpful and more convenient for future oral arithmetic practice.
Verbally "read" and calculate quickly.
The second oral arithmetic practice every day can make children read aloud oral arithmetic questions, which may be a little slow at first. You can come back for the second and third time and record the time of each exercise for comparison and continuous improvement. After this kind of reading and calculation training, children can calculate skillfully and quickly without thinking or memorizing formulas, and they can also train their reaction ability and calculation speed to make their attention highly concentrated. On the other hand, in the process of children's rapid oral calculation, parents may wish to disrupt the order of oral calculation questions, so that children can flexibly use oral calculation methods according to different oral calculation questions, so that oral calculation is reasonable, flexible and fast, and gradually exercise their mental agility.
"Writing" and oral calculation need to be correct.
The third oral arithmetic practice every day can make children write the oral arithmetic questions they have seen before quickly, and then parents can correct them, so as to know the correct rate of their oral arithmetic. This exercise is about the unity of reading and writing. It is a comprehensive application of understanding, calculation and proficiency. We shouldn't act in haste. After such repeated practice, children can calculate basic oral calculations correctly and quickly.
Li Rui said: after children master the method of oral arithmetic practice, there is still a certain distance from forming good oral arithmetic skills. At this time, parents need to pay attention to two points, cultivate their children's interest in verbal arithmetic, and insist on verbal arithmetic training.
Cultivating children's interest in verbal arithmetic can be carried out in vivid and interesting forms. This is very important for children in lower grades. If a single way is often used for oral arithmetic training, it will inevitably make them feel bored, inattentive and ineffective. Here are some methods that parents can try, such as competing with their children for answers, verbal relay races, verbal contests and so on. Or edify them anytime, anywhere. With the variety of forms, children's interest in arithmetic is naturally stronger. Here are two examples:
The teacher assigned a lot of arithmetic problems today, and I don't want to do them. At this time, my mom and dad had a verbal contest with me: my mom was the referee and I played a game with my dad. Mom read the question quickly, and my father and I rushed to answer it. The right answer is 1 point. Not only fun, but also gifts, that is, the whole family went to the bookstore to Taobao on weekends. I like this way very much, so I will have it tomorrow. ...
When my mother and I buy food, they will let me settle accounts; I will be asked to count 10 yuan to buy snacks if I work overtime. There are several schemes. When reading a book, you will ask me which page I have read today and how many pages I have read ... Under the bombardment of these numbers, mathematics has come to life and learning has become an interesting and happy thing.
In addition, oral arithmetic exercises should be used alternately in various ways to make children feel fresh and stimulate the enthusiasm of oral arithmetic. Only when they are interested can they play the role of practicing every day and blurt it out.
Children's language ability has great potential. If properly trained, their speech speed can be improved several times than that of children who are not trained. Therefore, to cultivate children's verbal ability, we should give priority to peacetime and insist on it. To ensure the time for children to practice oral arithmetic, it is best to practice for 3-5 minutes every day, and the effect is definitely much better than three concentrated exercises 10 minutes. On the other hand, the content of daily training should be organically combined with the content learned that day as far as possible to play a good role in consolidating.