Talking about the improvement of oral calculation skills Abstract: Oral calculation training can cultivate students' quick calculation ability, develop students' attention, memory and thinking ability, and lay a foundation for learning written calculation, which is an important issue that should be paid attention to in mathematics classroom teaching. If a single way is often used for oral arithmetic training, it will make students feel bored and unable to mobilize their enthusiasm for learning. According to my teaching practice in Grade One and Grade Two, the author puts forward some suggestions to improve students' verbal skills. ?

Key words: verbal skills, pupils' cognition of arithmetic and verbal calculation?

Introduction?

Oral arithmetic training can not only cultivate students' computing ability, develop students' memory ability and thinking ability, but also lay the foundation for learning written arithmetic. The ability of oral calculation directly determines the ability of written calculation, estimation and simple calculation Therefore, the cultivation of verbal computing ability is an important part of the cultivation of computing ability and the primary problem that should be paid attention to in mathematics classroom teaching. If a single way is often used for oral arithmetic training, it will make students feel bored and unable to mobilize their enthusiasm for learning. Especially the students of 12 and 12 are not focused enough, and their thoughts are easily distracted, so the effect of single form of oral arithmetic training is not ideal. ?

How to improve students' oral arithmetic ability and enhance the effect of oral arithmetic training is a problem worth exploring. According to my teaching practice in grade one and grade two, I put forward some suggestions to improve students' oral arithmetic skills. ?

First, teach methods, stress liquidation, and cultivate students' verbal ability?

Mouth algorithm is a law summarized from actual operation. If students master certain oral calculation methods, they can improve the calculation speed. At the same time, students' thirst for knowledge of oral arithmetic can firmly attract their attention and stimulate their interest in learning, which is also very helpful for teachers to successfully complete teaching tasks. ?

To do oral calculation correctly and quickly, we should not only master oral calculation methods, but also know how to calculate and think. For example, when teaching 8+6, first show the box containing 8 bottles of milk, and then show the box containing 6 bottles of milk, so that students can think about it: "How to put it so that you can see at a glance how many bottles of milk are in a * * *"? Soon a student said, "I took two bottles from six bottles and put them in an eight-bottle box." 10 bottle, there are 4 bottles left in another box, one *** 14 bottle. "After praising the students, explain the principle of this method-"add to ten ",that is, when you see 8, you think that 8 plus 2 adds up to 10, so that the mathematics established in the situation is very easy for students to master. ?

Junior students, especially freshmen, are mainly figurative and have poor abstract thinking ability. If they only explain, it will inevitably cause students to lack interest and not understand. Therefore, using learning tools for teaching can often get better results. Wooden sticks and various pictures are good teaching tools. ?

Second, ensure time, persevere and cultivate students' oral expression ability?

To improve the ability of oral calculation, there must be a certain training time and intensity as a guarantee; Not only need repeated training, but also need continuous training, so that everyone can pass the test. Teachers should always use 3 ~ 5 minutes before class to train students in oral arithmetic, and combine the training with the content of this class. In the long run, perseverance will inevitably receive good results. ?

Specifically, students can read before calculating, and then listen before calculating. Especially listening calculation, as an important content in primary school mathematics, plays a great role in cultivating students' agility and flexibility in oral calculation and improving the accuracy of oral calculation and written calculation. For example, when a teacher reports exercises orally, students can speak or write directly, which can improve students' reaction speed and calculation speed and make students concentrate. Therefore, we should attach importance to the teaching of listening and calculating in oral calculation, so that students can do oral calculation quickly through listening and watching, and promote the development of students' thinking. ?

Third, enhance the awareness of verbal calculation, develop the habit of verbal calculation, and strengthen comprehensive training?

To cultivate the ability of oral calculation, it is important to pay attention to peacetime and persistence That is to say, in order to enhance the awareness of oral calculation and develop the habit of oral calculation, whether it is a simple formula or a formula composed of numbers with certain characteristics, students should be allowed to do oral calculation as much as possible, which is conducive to improving students' judgment ability and reaction speed, and is conducive to the proficiency and consolidation of oral calculation methods and further transforming them into skills. ?

Oral arithmetic training should also be targeted, highlight key points, disperse difficulties, suit the remedy to the case, and stress practical results. For example, I often practice oral arithmetic repeatedly, record the mistakes in students' homework at any time, analyze and classify them, and take remedial measures. ?

Fourth, adopt a vivid and interesting form of oral calculation?

In order to improve students' interest and enthusiasm in learning oral arithmetic, vivid and interesting forms can be adopted. ?

1. Drive the train. This form of oral calculation takes a short time and has a wide range of practice, but it is only one student's turn to do a question orally, and the students who are not paying attention. To this end, teachers can make some changes and randomly call the roll, so that students will be very focused when doing oral calculations. ?

2. Answer first. Teachers count cards with their mouths open, such as 6+9, so that two students at the same table can answer at the same time to see who answers correctly and quickly, and then develop into a challenging answer, challenging another student to compete with him, and so on, to see who finally won the title of "king of verbal arithmetic". ?

3. Catch the red flag. This form of oral arithmetic competition has a strong atmosphere and can fully mobilize students' learning enthusiasm. ?

4. relay race. This form of oral calculation starts with the first student in each group and is sent back one by one to fill in, so as to compare which group is correct and fast. This kind of competition can cultivate students' sense of collective honor. ?

5. Numbers represented by gestures. Using this training method, on the one hand, every student has the opportunity to do the problem, on the other hand, the teacher can see who is right and who is wrong at a glance. ?

Conclusion?

Oral arithmetic teaching should not be eager to achieve success, but should be used in various ways alternately. We must make great efforts in teaching, cultivate students' habit and consciousness of oral calculation with appropriate methods, and practice repeatedly through vivid and interesting forms to achieve the goal of making students' oral calculation fast and efficient and constantly improving their operational level. ?