Diversified computing power

1. [how to improve pupils' computational ability]
students' computational ability is an important task of primary school mathematics teaching and an important foundation for students to learn mathematics in the future. So, as a junior mathematics teacher, how to cultivate pupils' computing ability? I start from the following aspects:
first, stimulate the interest in learning computing“ Interest is the best teacher. Interesting computing ability is a basic ability that everyone must have. Cultivating drama and vivid stories will make the relatively simple and boring learning of computing lively and interesting. It will make students interested in learning and get twice the result with half the effort
the game is exciting. For example: the division and combination of teaching numbers can adopt the mathematical game of "clapping hands" and take the division and combination of 10 as an example. The teacher patted his hand and asked: Liao Xiaohe, I ask you, what's my 4 beats? This game can be adjusted according to the change of learning content at any time. According to the students' proficiency, the rhythm can be adjusted at any time; It can change the form at any time, such as collective answer, group answer, indivial student answer, teacher ask student answer, student ask student answer and so on
the story is exciting. To stimulate interest with typical examples of Chinese and foreign mathematicians or short stories related to the classroom content. In teaching, we should timely list the typical examples of Chinese and foreign mathematicians. For example, Chen Jingrun, a famous mathematician in our country, constantly calculates in order to conquer "Goldbach conjecture", and the draft paper calculates in several sacks. Through such vivid and typical examples, we can stimulate students' will and arouse their interest in calculation; Or use the stories that students like to hear and see to activate the classroom atmosphere and attract students' attention. For example, in the two digit plus one digit carry addition, there are some mistakes that often appear when "little careless" is doing the problem. Let the students point out the mistakes first, and then look at the mistakes they have made. It not only arouses students' attention, but also stimulates students' interest in mathematics learning, so that students can concentrate on calculation and improve the learning effect in class
Second, cultivate good computing habits
a good habit of computing is a catalyst for success, which benefits people for life. The advantages and disadvantages of students' computing habits directly affect the formation and improvement of their computing ability. Therefore, in order to improve students' computing ability, we should first cultivate students' good habit of examining questions, writing and checking
the habit of examining questions. A good habit of examining questions is the key factor to improve the calculation ability, and the accuracy of calculation largely depends on the correctness of examining questions. Examination is the key first step in the process of calculation. Examination can overcome the influence of thinking set and eliminate the interference of thinking caused by strong information concentration. For example, when calculating 18-7 + 3, many students calculate 18-7 + 3 = 18 e to the strong information of "rounding". As soon as the students see the topic, they do it. They don't examine the topic carefully, and they don't think about what counts first and then what counts. As a result, such a simple calculation problem is wrong. Therefore, it is urgent to strengthen the cultivation of good examination habits
writing habits. Good writing habits can help students rece unnecessary mistakes. Nonstandard writing is also a common reason for calculation errors. When students are calculating, they sometimes look at it by mistake because of the illegible handwriting, such as 6 and 0, 3 and 8; Some write, write, erase, and blur; Some vertical writing is not standard, the number is not aligned and so on, may cause the calculation error. Therefore, in teaching, it is necessary to require students to write neat, standard format, to urge students to write numbers correctly and clearly
the habit of checking calculation. Checking and checking calculation is not only an effective measure to ensure correct calculation, but also a means to promote students' understanding of calculation process and calculation skills. Students can further understand the inverse operation relationship between addition and subtraction through checking calculation. But because of their weak willpower, primary school students are often unable to consciously check and calculate. Therefore, in the teaching of calculation, we should pay attention to teach students the methods of checking calculation, such as: requiring students to do "four checks": one check whether the number is copied correctly; Second, check whether the symbols are accurate; Third, check whether the operation sequence is correct; 4. Check whether the results are correct and write them down. The cultivation of students' good habits is not a day's work, it needs us to persevere in our efforts. This is a good thing beneficial to students all their lives, and we must do a good job
Third, understand the calculation principle and optimize the algorithm in hands-on operation
calculation is the premise and basis of correct operation. In the students' mind, the examples are clear, and the calculation is orderly. It is a difficult point to explore the arithmetic of carry addition within 20. When learning carry addition within 20, students can put it into practice, experience the process of "making up ten", and understand the method of "making up ten". For example:. At the beginning of class, students list the corresponding formula: 8 + 5 through situations and questions. Some students immediately reported the answer: teacher, 8 + 5 = 13. I said: you are so smart! How many children know the result? If you know, try to verify whether your results are correct; Children who don't know can use learning aids to help us calculate. Under my guidance, students use learning aids to represent 8 and 5 respectively, and operate according to their own different ideas. In the process of operation, students can understand the arithmetic of addition and carry. In the report, I try my best to let the students narrate, supplement, collect all kinds of information, and show a variety of algorithms. On this basis, I guide the students to find that these algorithms are interlinked. They all achieve the purpose of oral calculation by rounding up 10, so that the students can understand this kind of problem. Through the method of "looking at the large number, dividing the decimal, first rounding up 10, then adding a few", they can "optimize" the "diversification" in time, Seek a simple and fast method, so as to improve students' computing ability< Fourth, pay attention to the training of oral arithmetic in the teaching of calculation
in order to make the students have higher computing ability in primary school, we must pay attention to oral arithmetic and strengthen the training of oral arithmetic. Because oral arithmetic is an important part of calculation ability, and it is also the basis of written arithmetic, abacus and estimation. It is widely used in daily life and study. Therefore, in mathematics teaching, I attach great importance to strengthening students' oral arithmetic training. Before each mathematics class, I will use 3 to 5 minutes to carry out various forms of oral arithmetic training for students. For example: (1) oral arithmetic competition, let students write the number directly after the oral arithmetic exercises in the book, and organize proofreading and evaluation after the competition. And let the students who can calculate quickly and correctly talk about their own tricks 2) Read the cards and write the numbers directly. You can write the numbers on the cards. Students can write the numbers one by one. At last, students can show the numbers to organize proofreading and evaluation 3) Look at the problem and answer it by mouth. Let the students do it by themselves and then answer it by name 4) Listen and count, the teacher read the problem, let the students write the problem directly, show the problem after listening and count, organize the students to proofread and evaluate the result 5) Find a friend: let the students take the mental arithmetic card to find the number, etc. This tense and orderly training form can not only pay attention to every student, but also arouse students' great interest, and greatly improve the quality of group students' oral arithmetic practice< 5. Carefully design the calculation exercises
practice is an important way for students to consolidate knowledge and form skills. When designing exercises, we should pay attention to the following points: 1. We can design some exercises that can reflect the basis of calculation theory and the formation of algorithm for students to practice, such as the calculation process of 9 + 5 =. In this way, students not only understand the calculation theory, but also master the calculation method, playing a multiplier effect with half the effort. 2. Practice with easy to confuse contrast. In order to improve the students' identification ability and accuracy of calculation, we put the confusing questions together and let them distinguish and compare. 3. Often make mistakes and practice over and over again. The students use the new algorithm to calculate some of the typical errors on the blackboard, let the students find out the mistakes, correct them, can clear the obstacles for the students algorithm. 4. The practice should be taught according to the person, and the practice goal should be put forward in different levels. For the students with strong computing ability, the requirements can be improved; For students with slow thinking, the requirements are lower; For poor students, let them do the most basic exercises, give help and encouragement in practice, let them overcome inferiority, build up confidence, and really mobilize their learning enthusiasm< Sixth, strengthen the collation and analysis of wrong questions
we should pay attention to the collection and collation of students' mistakes, and analyze the ideological roots of their mistakes. In my usual homework, I prepare a notebook to classify and record the errors in students' calculation, find out the common errors and find out the typical errors, so as to "suit the remedy to the case" in teaching, especially find out the typical errors with unclear calculation and wrong methods, organize students to analyze the root causes, find out the "cause", and then design a certain number of targeted exercises, Purposeful "living therapy". At the same time, each student is required to prepare a wrong problem book, and the students are required to "sort out the wrong problems", record the mistakes in their homework book, exercise book and test paper in the wrong problem book in time, find out the reasons for the mistakes, and correct and classify them in time
it's a long and hard process to cultivate students' computing ability. Let's all math teachers join hands and make unremitting efforts to improve students' computing ability

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3. "Mathematics curriculum standard of compulsory ecation" has adjusted the requirements of students' calculation ability, reced the complexity of calculation, especially deleted a large number of written calculation content, but also moderately reced the requirements of calculation speed. At the same time, e to the graal popularization of computing tools, the requirements of social life for computing skills are graally reced, and the requirements of primary school textbooks for computing ability are also reced. But the process of computing teaching is a process of cultivating students' thinking. The improvement of computing ability can promote the development of students' thinking ability. So how can we improve students' computing ability? I feel that the following aspects need to be strengthened in the specific teaching:
first, to strengthen the understanding and perception of calculation theory
to make students know how to calculate, that is, to strengthen the mastery of rules and calculation theory "Curriculum standard" points out: "in teaching, we should further cultivate students' sense of number and enhance their understanding of the meaning of operation by solving problems." Therefore, in the teaching, we should combine with the practical problems to understand the calculation theory and guide students to master the calculation method. If the students understand the calculation theory, and the teacher consciously guides the students to strengthen the understanding of the calculation theory, then the students will naturally master the calculation theory, and it is easy to make the use of the calculation theory to become a conscious action. Although rote learning can be effective in the short term, or a large number of mechanical imitation will also have a rapid effect, in the long run, only when students understand the calculation theory can they really accept the calculation method itself, and even if they forget the calculation method itself, they may also dece the calculation method again by recalling the materials provided by the teacher in the classroom. It is also an important way to develop students' learning ability to explore calculation theory.
secondly, it is a highlight of mathematics curriculum reform and a difficulty in practice to advocate algorithm diversification. Algorithm diversification encourages students to think independently, to think diversely and to solve problems indivially. In the process of encouraging algorithm diversification, students' thinking is fully activated, and new and flexible methods are constantly popping out of students' minds. Different ideas collide here, and everyone enjoys the fun of successfully solving problems, which is very helpful to tap students' potential and cultivate students' interest in learning mathematics. More importantly, students have the opportunity to choose the most suitable algorithm according to the actual situation, which is also the requirement of respecting students' personalized learning. For example, the fifth grade students learn the method of finding the least common multiple. The enumeration method is very basic and easy for students to understand and accept, but it's really slow. If students find that in many exercises of finding the least common multiple of two numbers, they constantly double the large number, they can also get the least common multiple. This method is not only simple and easy to use, And it's easy for students to understand. Therefore, it is necessary to encourage students to think and exchange diversified calculation methods for the same topic and optimize them< Third, we should pay attention to the variety and interest of practice forms, and enhance the effectiveness of practice.
the strength and weakness of students' computing ability directly affect the improvement of students' other aspects of mathematical ability. Although we oppose excessive practice, practice makes perfect. The cultivation of computing ability cannot do without appropriate practice, and any knowledge needs to be graally accepted and internalized in the process of using. We can make efforts in the diversity and interest of practice forms, improve the operability of practice, combine learning with doing, and integrate teaching, learning and doing; Enhance the game, challenge and interest of practice, and combine learning with fun. Let diversified exercises attract students' active participation, and change the former "ask me to practice" to the present "I like to practice"; Turn the practice into the exploration of skills and small games; In addition, the students' group listening, checking, competition, self-made and taking turns to write questions are all good forms of practice. In this way, by giving full play to the autonomy of students, to consolidate the computing skills, students' computing skills will be improved unconsciously
to achieve this goal, it is undoubtedly a severe challenge for teachers to prepare lessons. It requires our teachers to carefully design exercises according to the specific teaching content and training objectives, truly proceed from the reality of students, fully consider the psychological needs of students, respect the cognitive rules of students, and make classroom exercises truly hierarchical and interesting, so as to achieve the purpose of enhancing effectiveness< (4) guide students to understand some quick calculation skills and find some calculation rules.
although we object to teachers' blindly passing some calculation skills on to students, it is necessary for students to properly understand some calculation skills. Everything will have potential rules, people will always consciously or unconsciously ponder some of the skills, students are no exception. For example, in four operations, if students memorize some common data, find 4 when they see 25, and find 8 when they see 125, they can better master the skills of calculation, which is helpful for students to achieve the requirements of "correct, rapid, reasonable and flexible"< 5. Cultivating students' good habits is an important guarantee for the formation of computing ability. It is the main way and measure to prevent calculation error and improve calculation level to see operation symbols clearly and form good study habits
1. Cultivate students' habit of serious examination. See the operation symbol clearly, see the number clearly, make clear the operation order. For example: 12 as 21, 2 as 5, 3 as 8, etc
2. Cultivate the habit of serious calculation. In the four operations, it is necessary to train students' calm and calm learning attitude. When encountering the calculation questions with large numbers and many steps, we should not be impatient, think calmly and calculate carefully. Even simple calculation problems should be careful. Don't act rashly. When calculating, the writing should be neat, the format should be standard and the method should be reasonable
3. Cultivate students' habit of patient examination. It is impossible to ask students to be 100% correct in calculation. Therefore, in teaching, we should also ecate students to form a good habit of carefully checking the calculus after calculation, and take the test as an indispensable part of the calculation problem. The inspection should be patient and careful, and check step by step: check whether the numbers and budget symbols are copied wrong. 2. Check whether the calculation process and results are correct. At the same time, we should combine the teaching content to teach students appropriate checking methods, such as re algorithm, inverse algorithm, exchange addend, multiplier and other checking methods
improving students' computing ability is a permanent theme in mathematics teaching. As a primary school mathematics teacher, we should start from the long-term development of students and strengthen the cultivation of students' computing ability. Starting from each class, we should train strictly and scientifically. Over time, students' computing ability will graally increase.

4. Calculation is an important basic knowledge in primary school mathematics, which runs through the whole process of primary school mathematics teaching. Whether a student's calculation ability is strong or not is directly related to his interest and effect in learning mathematics. Therefore, it is very important for students to learn calculation well and form a certain calculation ability. As teachers, how can we change the current situation that most primary school students' computing ability is very weak? Let's talk about my personal opinions:
first, in teaching, to make students understand and master the basic knowledge of computing, which is the premise of improving students' computing ability
primary school students often make mistakes in the process of computing e to various reasons, many parents and even teachers are completely attributed to their children's carelessness. In fact, this is only one of the reasons. To a large extent, it is the lack of comprehensive ability of children in calculation. For example, the basic knowledge such as operation law, operation property, operation law and calculation formula is not mastered or cannot be used reasonably and flexibly. Even though the child is very careful and serious in the calculation, he makes seemingly simple mistakes e to the lack of basic knowledge. In teaching, we can't be in a hurry for success. We need to help students find out the reasons (such as incomprehensible calculation theory, incomprehensible laws, unclear nature, unfamiliar laws, not mastering formulas, etc.), find out the omissions and fill the gaps, clear up the obstacles, and do a good job in basic work for further learning calculation
Second, in teaching, it is necessary to cultivate students' interest in computing, which is the key to improve students' computing ability
Einstein once said, "interest is the best teacher.". Confucius also said: "those who know are not as good as those who know well, and those who know well are not as good as those who are happy.". They all talked about the importance of interest. In the teaching of computing, we should stimulate students' interest in computing, let them fall in love with computing and be willing to do it. Only in this way can our teaching of computation be successful. Therefore, we should combine the content of teaching, pay attention to the diversification of training forms, teach in fun, so that the boring teaching of computing is full of vitality. For example, we can use multimedia, cards and other available learning aids and teaching aids to train students in such ways as visual calculation, listening calculation, snatching calculation, in-game calculation, calculation competition and self-made calculation, so as to fully mobilize students' enthusiasm, change students' passivity into initiative, and graally form a lasting interest in calculation
thirdly, in teaching, we should cultivate students' good computing habits, which is the guarantee of improving their computing ability
good computing habits directly affect the formation and improvement of students' computing ability. When doing the calculation problems, some students often have the attitude of contempt. Some calculation problems are not unable to do, but e to the bad habits of insufficient concentration, ing wrong problems, careless calculation, not checking calculation, etc. Therefore, in the teaching of calculation, it is also very important to pay attention to the cultivation of students' good calculation habits. In teaching, we should try our best to make the students form the habit of concentration, careful calculation, careful ing, conscious inspection, conscious estimation and checking. In addition, teachers should strengthen the guidance of writing format. The standard writing format can help students to prevent wrong writing, missing writing numbers and operation symbols, rece the chance of error, and improve the accuracy of calculation
Fourth, in teaching, we should strengthen practice, which is the magic weapon to improve our computing ability
Confucius said, "learn while you learn", "review the old and learn the new", which shows the necessity of practice. Only on the basis of mastering the calculation method, strengthen the practice, can we improve the speed and accuracy of calculation. Only in this way can we realize the knack of calculation and improve the ability of calculation in an all-round way. Of course, we should pay attention to the diversity of training strategies and methods, so as not to cause students' boring mood. For example, the training content should have levels: basic training (the purpose is to master the rules, operation laws, operation properties, calculation formulas, etc.); Targeted training (the purpose is to correct where students are most likely to make mistakes); The purpose of special training is to improve the speed and accuracy of calculation by strengthening memory and remembering commonly used calculation values. For example: the proct of the approximate value of PI 3.14 and one digit, the simplest fraction with denominator of 2, 4, 5, 8, 10 and the interaction of decimals, etc.) Training methods should be diverse, such as: competition, can improve speed; Game style, can improve interest and so on. There are many ways of training, such as: using multimedia; Use simple teaching aids and learning aids (self-made calculation cards, counters, playing cards, etc.)< In teaching, we should strengthen the training of oral arithmetic, which is a shortcut to improve the ability of calculation
oral calculation is the basis of calculation. The strength of oral calculation ability directly affects the speed and accuracy of students' calculation, so we should pay attention to the cultivation of oral calculation ability. First of all, classroom teaching should avoid rigid and single. It can be used in various forms. For example: the form of game can be used in the junior grade: such as "driving a train", "looking for friends", "looking for house number", "sending a letter", "right password", "winning the red flag", "breaking the barrier", etc; The middle grade can use the mental arithmetic board, the mental arithmetic table, the card, the slide or the game to carry on the training; Senior training methods can be named answer, rush answer, all answer, listen to count, count, etc; If we use the above different forms of training methods, if possible, adhere to the appropriate oral arithmetic training before each class, I believe it will be able to quickly improve students' computing ability< Sixth, encourage students to use oral arithmetic in life, which is an essential way to improve students' oral arithmetic ability
we should encourage students to use computing knowledge in our life, so as to make students have a sense of achievement and obtain pleasure. In this way, students will pay more attention to computing and mathematics, so as to improve their interest in learning mathematics. We know: computing is the most widely used in our life. Teachers can get the cooperation of parents, and often let students consciously participate in the calculation of shopping, car ride, travel and other expenses. This can not only improve students' awareness of the application of oral arithmetic, but also improve students' computing ability. It's really a double win with one stone
in short, computing teaching is a long-term and complex teaching process, and it is not a matter of one day to improve students' computing ability. It needs the joint efforts of teachers, parents and children to achieve good results. I hope that teachers, in the future in the teaching of computing bear fruitful results.

5. How to improve students' computing ability
I. research topic: how to improve pupils' computing ability
2. Participants: all mathematics teachers 3. Research objects: primary school students (grade 3 to grade 6) 4. Activity background: mathematics curriculum standard clearly points out that mathematics is the basis and tool of daily life and learning, and mastering certain basic knowledge and skills of mathematics is the basic cultural literacy that a citizen should have, Calculation ability is a basic mathematical skill that everyone must master. Calculation teaching is a very important part of new mathematics teaching. It can be seen that students' computing ability is crucial. To improve students' computing ability is helpful to cultivate students' mathematical literacy, the ability to solve problems, and the quality of being earnest, meticulous, patient and fearless of difficulties. Therefore, how to improve students' computing ability has become an important issue in primary school mathematics teaching< (1) to cultivate students' computing ability is an important task of primary school mathematics teaching, an important basis for students to learn mathematics in the future, and one of the basic qualities necessary for students to study, live and participate in society in the future
(2) the accuracy of primary school students' calculation is often affected by students' interest, attitude, will, habits and other factors. When doing calculation problems, students generally have the attitude of contempt. Some calculation problems are caused by lack of concentration, wrong ing, careless calculation and no checking 3 Teachers attach importance to students' hands-on practice and mutual cooperation, pay attention to the change of students' learning style, and encourage students to diversify their algorithms. However, to a certain extent, they ignore the cultivation of students' good computing habits and the improvement of their actual computing ability. In other words, they spend less effort in the teaching of computing, which leads to students' difficulty in the process of computing, There are always mistakes like this and that< 4. Activity objectives:
1. Make students set up correct learning objectives, correct learning attitude, consciously study and cultivate good learning habits
2. Make students learn to allocate their time independently, organically combine in class and out of class, infiltrate and promote each other, so that students can improve their computing ability and overall quality in a relaxed and pleasant learning atmosphere
3. Through teaching and research activities, teachers are trained to be good at finding problems, diligent in learning, brave in innovation, and constantly improve their abilities in all aspects and the courage and ability to solve new puzzles
4. Strive to find a teaching method and teaching mode that can effectively rece the burden of students, effectively cultivate the ability of calculation and innovation, and promote students' lively and active learning, and graally form a personal teaching style and the characteristics of teaching and research group
5. Preparation for the activity. All teachers talk about how they carry out calculation guidance in daily teaching around the theme. Mr. Li Fuju: we should pay attention to the training level from shallow to deep, from simple to complex, and the training forms should be diversified. Games and competitions can stimulate students' enthusiasm for training and maintain the rability of training. Mr. Li Zhiying: when calculating, students are required to proofread everything they , so as to make sure that it is correct and accurate. Mr. Huang LiangFang: tell the students the order of the four mixed operations and the meaning of the operation law< Six, the specific activity process
1, each student has a mental arithmetic card to complete at least 10 mental arithmetic questions every day
2. In mathematics class, we should solidly implement the training of calculation
3. Cultivate students' good habits of conscientiousness, carefulness, neat writing, standard format, careful examination and analysis
students of grade 4 and 5 should prepare a Book of wrong questions. Some examples of mistakes in their homework should be extracted in their own book of wrong questions, and the reasons for the mistakes and the ways to correct them should be written down. Students can communicate with each other and often do so, so as to learn from the usual lessons and avoid or rece the mistakes in the future study
5. Strengthen practice and use various forms to make students form proficient skills. In a word, the students' computational ability is comprehensive, and it permeates and supports each other with observation ability, memory ability and thinking ability. In teaching, teachers should carefully cultivate and correctly guide students to fully develop their thinking activities, so as to continuously improve their computing ability.

6. With the development and integration of artificial intelligence, big data and computing power, the three have been organically integrated into an intelligent whole. Its connotation and denotation tend to be diversified, and the applications in various subdivision fields are also rich and superimposed. You have me and I have you. The difference and boundary between artificial intelligence, big data and computing power are more and more blurred
at this stage, the application of artificial intelligence and big data has penetrated into various fields such as instry, agriculture, medicine, national defense, economy, ecation and so on, and the commercial and social value generated is almost unlimited. With the development of artificial intelligence and Internet of things, cloud computing is no longer limited to storage and computing, and has become an important driving force for the development and transformation of various instries. You can learn more about AI, big data and computing power on the 10th power computing power platform.

7.

For those pupils with poor grades, it is very difficult to learn primary school mathematics. In fact, primary school mathematics belongs to the basic knowledge, and it is relatively easy to master certain skills. In primary school, it is a period that needs to develop good habits. It is important to pay attention to the cultivation of children's habits and learning ability. What skills do primary school mathematics have

It can be seen from this that the skill of primary school mathematics is to do more exercises and master basic knowledge. In addition, it is mentality. If you can't be timid before the exam, it's very important to adjust your mentality. Therefore, you can follow these skills to improve your ability and make yourself enter the ocean of mathematics

8. In our primary school, calculation teaching can be said to run through the whole process of mathematics teaching, which shows the importance of calculation teaching. But the accuracy of primary school students' calculation is often affected by students' interest, attitude, will, habits and other factors. When doing calculation problems, students generally have an attitude of not paying attention to it. Some calculation problems are caused by insufficient concentration, wrong ing, careless calculation and no checking. In order to effectively improve the calculation ability of primary school students, it is necessary to take a variety of measures and methods. This topic I mainly from the following aspects of training research, and achieved certain results
first, pay attention to stimulate students' interest in active learning and improve their computing ability
interest is the internal driving force of learning and the basis of learning. From the heart, computing is really boring. We should cultivate students' interest in computing, arouse their enthusiasm in learning, and stimulate students' thirst for knowledge. As a teacher, we should try our best to attract students
1. For boring calculation, after learning to master the calculation method, we often deal with it casually, resulting in more calculation errors. At this time, the proper development of some computing competition activities, often can better mobilize the students' learning initiative, improve the interest in computing, and achieve the purpose of improving the accuracy of computing. For the correct calculation of students, the implementation of small red flag reward, a small red flag greatly improves the enthusiasm of students
2. Encourage students to have a pleasant learning experience. We should encourage students to make mistakes e to carelessness. First of all, we should affirm its strengths, enhance its self-confidence, and then put forward ardent hope to urge it to correct its shortcomings< Second, we should pay attention to cultivate students' good learning habits and improve their computing ability. A large number of facts show that the lack of serious learning attitude and habits is one of the important reasons for students' errors in calculation. Therefore, teachers should be strict with students and develop a good habit of calculation. In this study, I mainly focus on the cultivation of the following habits:
1. The habit of careful examination
for practical problems, most students can still seriously examine the problems, but for calculation problems, some students can even write. In addition, the calculation is relatively monotonous and boring, which may cause psychological fatigue. When encountering similar or similar numbers and symbols, the operation order is often wrong, and the wrong symbols or numbers are copied. Therefore, in teaching, students should be trained to examine the topic carefully and see each number and operation symbol clearly. In teaching, there are three steps: first, we should examine numbers and symbols, and observe their characteristics and internal relations; Second, it is necessary to examine the order of operations and make clear what is calculated first and then; Third, we should examine the rationality and simplicity of the calculation method, and analyze the characteristics of the calculation and data. And then we start to solve the problem
2. Cultivate the good habit of checking calculation
some students think that checking calculation is optional, but it is not. Checking calculation can not only ensure the correctness of calculation, but also cultivate students' meticulous attitude towards learning. For example, the rationality of calculation results can be judged by estimation; In addition, the sum should be greater than each addend; In subtraction, the difference and subtraction should be less than the subtracted and so on. As teachers, we make up Doggerels with students: the number of titles and check immediately; Check repeatedly ring calculation; Check up and down when taking off; After the calculation, check it as a whole. Of course, the inspection should have a clear purpose and strict standards, so that every question must be checked and every step must be checked. Step by step, check the calculation in time, correct the mistakes in time, and ensure the correct calculation. Every teacher in our school pays attention to the habit of checking the calculation of students. Every calculation problem requires students to improve the way of oral calculation process to check the calculation, so as to improve the calculation ability of all students
3. Develop a good habit of standardized writing
in the research, I strictly stressed that the writing of students' homework and exercises should be neat, and the format should be standardized. Students are required to use a ruler to draw lines. The number, decimal point and operation symbol in the title must be written in accordance with the standard and clear. Teachers should set an example for students. Such as: problem-solving teaching, examination in the front, analysis in the back; The writing on the blackboard is concise and focused; Use a ruler to write on the blackboard
thirdly, pay attention to cultivate students' oral calculation ability, lay a good foundation for calculation and improve students' calculation ability
the curriculum standard of primary school mathematics points out: to cultivate students' computing ability, we should pay attention to the basic training of oral arithmetic. Oral arithmetic is not only the basis of written arithmetic, estimation and simple calculation, but also an important part of computing ability. Only when the ability of oral calculation is strong, can the speed of written calculation be accelerated and the accuracy of calculation be improved. Therefore, every student should lay a good foundation of oral arithmetic, strengthen the training of oral arithmetic and improve the ability of oral arithmetic
first of all, I teach students basic oral arithmetic in teaching. Such as: using the composition of the number to calculate the addition and subtraction method within 10; Use the method of rounding ten to calculate the carry addition within 20; Do subtraction, want to add; It can be converted into tens plus or minus one digit; It is transformed into addition and subtraction within 20; Convert the two digit plus and minus tens into one digit minus one digit; First, the two digit addition and subtraction is converted into two digit addition and subtraction tens, and then into two digit addition and subtraction one digit; The multiplication formula is used to calculate the proct and quotient directly; According to the law of multiplication and distribution, the oral calculation is carried out; In the four mixed operations, teaching students some operational skills, and constantly improve the ability of oral arithmetic
Second, set goals and practice. It is required to arrange 3-5 minutes of oral arithmetic practice before each math class, so that it can be carried out for a long time, persevere, and get good results
finally, there are many forms of transformation. Students such as: self calculation, find their own oral problems (calculation), mutual calculation, students work out each other's problems, repeated calculation, through repeated practice, oral calculation ability will naturally improve. Teachers, such as: visual arithmetic training, listening arithmetic training, oral arithmetic, oral arithmetic games, "confrontation", "relay race" and so on. It is helpful to stimulate students' interest in learning< In this study, I mainly focus on the cultivation of students' oral arithmetic ability, ignoring the cultivation of estimation awareness and estimation ability, which is the main work I will do in the future. Do a good job of estimation, improve students' ability of self-examination, improve the accuracy of students' calculation< Of course, students' computing ability can not be developed overnight. As a teacher, first of all, he should be able to use the calculation rules and laws freely, so that he can be handy and improve the effect. At the same time, the training should be carried out persistently. It is difficult to achieve results by fishing for three days and drying the net for two days. In the teaching of calculation, we should constantly think and explore. We should not just calculate for the sake of calculation, but combine it with the actual life and emotional attitude advocated by the new curriculum standard, so as to avoid the monotony and dryness of calculation. We believe that students' computing ability will continue to improve.