Zhang Ling, Qianwei Road Primary School in Lianhu District, this semester, our group applied for the research topic of Xi's basic education: how to improve the computing ability of primary school students. In my usual work, I try my best to guide my usual teaching practice according to the requirements of subject research, and summarize, exchange and improve the experience of teaching reform practice in time. Strengthen the research on classroom teaching reform, change students' learning methods, and promote the improvement of teachers' teaching level and teaching quality. As a first-year math teacher, I focus on the teaching of oral arithmetic. Oral arithmetic teaching plays an important role in primary school mathematics teaching. The first grade is an important period to lay a good foundation for oral arithmetic, which will directly affect students' future computing ability. However, it is common for the students in the first grade of primary school to make mistakes in calculation exercises because of their young age and immature psychological development. First of all, analyze the causes of students' oral arithmetic errors. There are many reasons for children's verbal errors, which are summarized as follows: 1. Psychological reasons: Pupils' perception of events is general and not specific enough, and they often only notice some independent things, but can't perceive the connections and characteristics between things, so they lack the overall understanding of things. Sometimes when doing oral arithmetic exercises, some students blurt out the answers before they see the numbers or operation symbols clearly. 2. The influence of non-intellectual factors. The first-year students are too young to realize the importance of correct oral calculation. I am not interested in verbal arithmetic, and it is more troublesome to repeat training mechanically, so I talk nonsense without thinking. Even the best study habits are not fully developed, and you can't concentrate on doing oral calculations when doing homework; Irregular writing, scrawled handwriting, and difficulty in checking calculation after calculation are all causes of calculation errors. 2. The Outline of Methods for Improving Students' Oral Calculation Ability points out: "To cultivate students' computing ability, we should first pay attention to basic oral calculation training, which is not only the basis of written calculation, but also an important part of computing ability. "Oral calculation is a calculation method that directly calculates numbers without using calculation tools, mainly relying on thinking and memory. Therefore, to improve students' computing ability, we must lay a good foundation for oral calculation. In order to prevent students from making mistakes in oral calculation, improve students' oral calculation ability, and let students do oral calculation correctly and quickly, I can adopt the following methods in teaching, which have produced good results: 1, the inductive summary method of oral calculation in the first grade of primary school, especially the addition within 20 is the focus and difficulty of adding and subtracting oral calculation. As long as you are very proficient in oral calculation within 20, no matter how difficult it is, there will be no big problem. The main teaching method used in the teaching of decimal addition within 20 is the method of rounding to ten, that is, the method of "looking at large numbers, dividing them into decimals, rounding to ten and adding the remainder". (1), inductive algorithm, "plus ten method". (2) Guide students to find out the law of "9 plus several" problem: the first addend is 9, and the second addend is getting bigger and bigger; The total number is less than the second addend 1. 2. Various forms of exercises are different from solving problems because they have no vivid plot and are boring and monotonous, so it is difficult to attract students' attention. Interest is the best teacher. Repeated mechanical training will make students feel bored, easily tired and bored, and can't stimulate their interest in training. Therefore, when practicing oral arithmetic, only various forms can fully arouse students' enthusiasm for learning. At ordinary times, parents pay attention to using various methods to practice oral arithmetic, such as reading oral arithmetic cards to directly say the number of words, checking passwords, driving a train to win a red flag, etc., as well as self-calculation (looking for oral arithmetic questions in books to see how many words you can correctly answer in a specified time), mutual calculation (giving questions to each other and comparing with each other to improve your oral arithmetic ability), oral arithmetic competitions, and rushing to answer. In addition, in addition to practicing in class, children can also be advised to use it in daily life, such as helping parents calculate the amount of money they spend when they go shopping together. In this way, parents can make all the additions and subtractions within 10 into cards and practice every day, so they won't feel bored. 3, oral practice should be persistent, oral calculation should be correct and skilled, we must insist on practicing every day. My practice is to spend three to five minutes before class every day, so that students can listen and count 20 crossings. I believe that as long as you keep on practicing, you will always make progress over time. 4. Develop good habits and keep the correctness of oral calculation. Most mistakes in verbal arithmetic are attributed to children's careless habits. Therefore, good habits are the guarantee of improving computing power. However, these good habits are not born, nor can they be developed overnight. They can only be cultivated through long-term purposeful training. Therefore, in the teaching process, teachers should educate students at any time, educate them to develop the good habit of "seeing questions clearly, calculating carefully, writing neatly and checking consciously", and strive to eliminate calculation errors and improve the accuracy of oral calculation. In a word, it is a hard and meticulous job to improve the accuracy of first-year students' oral calculation. Only by adhering to the process, gradually forming mathematical thinking methods, mastering algorithms, understanding arithmetic, forming skills and forming good habits in oral calculation practice can we achieve the goal of improving oral calculation ability.