Power expression
Publish: 2021-04-01 21:16:37
1. At present, the situation of middle school students' computing ability is very poor, many teachers complain: "the students' computing ability is too poor, even the simple operation can't pass, and even the students with good mathematical foundation often make mistakes." There are many reasons for these situations. Some students don't know the reason and mechanically the formula; Some of them ignore the results of calculation, blindly dece, and lack the consciousness of reasonable choice of simple operation way; Some students do not pay enough attention to improving their computing ability. They always use "carelessness" as an excuse; There are also quite a number of teachers only focus on the guidance of problem-solving methods and ideas, and ignore the necessary guidance of the rationality and simplicity of the operation process. This not only affects the development of students' thinking ability, but also affects the improvement of teaching quality. In this paper, how to improve students' computing ability, from the following aspects to talk about their own superficial views< 1. Fixed thinking methods have both positive and negative effects in operation. When students master a certain kind of knowledge (method) and get used to thinking with similar old knowledge (method), they will inevitably have inertia of thinking and affect the speed of operation, It makes the operation very complicated
2. Lack of comparative consciousness
comparative consciousness is an important direction to solve problems. There are many ways to solve problems, which requires us to be good at choosing the best. Some students are lack of comparative consciousness. They often find a way to do it. Even if it's tedious, they don't care. They think it's OK to do it right. When commenting on the test questions, the teacher ignores the priority of simple methods among various solutions< In the history of mathematics development, different kinds of operations are graally formed and developed from simple to complex, from concrete to abstract, from low level to high level. Therefore, the understanding and mastering of operation must be orderly and hierarchical step by step. Without mastering the calculation of rational number, it is impossible to master the calculation of real number; Without mastering the calculation of integral, it is impossible to master the calculation of fraction. It is impossible to master infinite computation without mastering finite computation. Without the basis of concrete operation, abstract operation is difficult to realize. It can be seen that the computing ability is graally developed with the graal broadening of knowledge, the deepening of content and the continuous improvement of abstract program. If the development of mathematical content is infinite, then the improvement of operation ability will never end<
the requirements for middle school mathematics operation ability can be roughly divided into two levels: ① accuracy of calculation - basic requirements; ② reasonable, simple and rapid calculation - higher requirements; ③ skill and flexibility of calculation - high standard requirements. In thought, we must fully understand the importance of improving the operation ability, raise the operation skills to the level of ability, and integrate the operation skills with the development of thinking< (2) the comprehensiveness of operational ability
operational ability can neither exist in isolation without specific mathematical knowledge, nor develop independently without other abilities. Operational ability is permeated with memory ability, observation ability, understanding ability, association ability and expression ability, and it also supports mathematical abilities such as logical thinking ability. Therefore, the problem of improving the computing ability is a comprehensive problem. In the teaching process of various subjects in middle school, we should strive to cultivate the computing ability, continuously guide, graally accumulate and improve it.
2. Lack of comparative consciousness
comparative consciousness is an important direction to solve problems. There are many ways to solve problems, which requires us to be good at choosing the best. Some students are lack of comparative consciousness. They often find a way to do it. Even if it's tedious, they don't care. They think it's OK to do it right. When commenting on the test questions, the teacher ignores the priority of simple methods among various solutions< In the history of mathematics development, different kinds of operations are graally formed and developed from simple to complex, from concrete to abstract, from low level to high level. Therefore, the understanding and mastering of operation must be orderly and hierarchical step by step. Without mastering the calculation of rational number, it is impossible to master the calculation of real number; Without mastering the calculation of integral, it is impossible to master the calculation of fraction. It is impossible to master infinite computation without mastering finite computation. Without the basis of concrete operation, abstract operation is difficult to realize. It can be seen that the computing ability is graally developed with the graal broadening of knowledge, the deepening of content and the continuous improvement of abstract program. If the development of mathematical content is infinite, then the improvement of operation ability will never end<
the requirements for middle school mathematics operation ability can be roughly divided into two levels: ① accuracy of calculation - basic requirements; ② reasonable, simple and rapid calculation - higher requirements; ③ skill and flexibility of calculation - high standard requirements. In thought, we must fully understand the importance of improving the operation ability, raise the operation skills to the level of ability, and integrate the operation skills with the development of thinking< (2) the comprehensiveness of operational ability
operational ability can neither exist in isolation without specific mathematical knowledge, nor develop independently without other abilities. Operational ability is permeated with memory ability, observation ability, understanding ability, association ability and expression ability, and it also supports mathematical abilities such as logical thinking ability. Therefore, the problem of improving the computing ability is a comprehensive problem. In the teaching process of various subjects in middle school, we should strive to cultivate the computing ability, continuously guide, graally accumulate and improve it.
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3. Just now I tried. You can make a comparison in the project details of BTC or BCH. You can choose different indicators
4. This year's MWC conference was held in Shanghai, attracting hundreds of companies from all over the world, and Inspur information also participated in the event. Zhao Shuai, deputy general manager of Inspur information procts division, shared the keynote speech of "intelligent computing + ecology accelerating application innovation of communication instry". He said: "5g technology promotes the interconnection of all things, the interaction between people and information is undergoing epoch-making changes, and the world is becoming more intelligent. However, with it comes a flood of data far beyond imagination, and computing power will become the most important proctivity in the age of wisdom. " As a strategic partner of China Mobile, China Unicom and China Telecom, Inspur information has launched a number of artificial intelligence projects in the field of communication with operators. In a large-scale artificial intelligence platform project of a telecom operator, Inspur artificial intelligence server supports its intelligent business to review 18 million orders in 10 provinces, with an accuracy rate of 97%; In the aspect of intelligent customer service, it can filter more than 50% of customer service problems with high efficiency and no waiting.
5. There are two ways to cultivate students' estimation consciousness. On the one hand, in the teaching process, we should consciously infiltrate the idea of estimation, let the students guess the mathematical laws with estimation, test the idea of solving problems with estimation, and test the result of solving problems with estimation, so as to run the idea of estimation through the whole teaching process and make the students strengthen the consciousness of estimation imperceptibly. On the other hand, let the students use estimation as much as possible to solve some problems closely related to life, and estimate according to the actual situation in life< Fourth, help students understand the principles of calculation and reveal the rules.
in the teaching of calculation, let students understand the principles of calculation and know not only what they are, but also why they are. In this way, the teaching of calculation will become lively and colorful. Low grade students' intuitive thinking is dominant, and they graally transition to abstract thinking. Psychologists believe that thinking starts from action. To enable students to master mathematical knowledge and promote the development of thinking, it is necessary to build a bridge between image thinking and mathematical abstraction, and give full play to the role of learning tools. In the teaching of 9 plus a few, students can ask for a stick to study together. In the students' independent operation, we can optimize the ten methods, which will lay the foundation for further study of carry plus and abdication minus. We can also make use of students' existing knowledge and experience to understand new knowledge, construct the main way of teaching knowledge structure, properly use old knowledge in teaching, assimilate new knowledge through analogy, and realize the positive transfer of knowledge, which is concive to students' understanding of new knowledge and recognition of new knowledge structure. For example, if you want to add, calculate, subtract, and seek quotient with pithy formula, students will continue to learn through the connection between knowledge. For another example, the methods of carry plus and abdication minus should be explained clearly, so that students can understand them thoroughly, so that they can correctly and skillfully use the method of calculation< Fifth, cultivate the junior students to develop good calculation habits
good calculation habits directly affect the formation and improvement of students' calculation ability. Many students can understand and master the algorithm, but they often make mistakes, mainly e to the lack of strict training and good learning habits
(1) cultivate students' habit of making drafts. It is a common phenomenon that students don't like to draft when they are calculating. The teacher assigned calculation problems, some students directly oral calculation, some in the book, table or other places, write one or two vertical, as a draft, these are bad calculation habits. Most of the calculation problems, except for a few students who can actually calculate the results directly by mouth, most students probably don't have this ability. In view of this situation, I ask the students to prepare special drafts and make them conscientiously. At the same time, I often go down from the platform to the students in class, and strictly urge the students to implement them. Over time, the students will graally develop this good habit
(2) cultivate students' good habit of careful writing and standard format.
students' habit of careful writing is usually formed. When students do questions, remind them to be careful, see clearly the meaning of the questions, see clearly the data provided by the questions, speak out the quantitative relationship according to the requirements of the questions, and correctly list the formulas for calculation, In the aspect of writing format, students are also required to be meticulous and answer questions according to the correct format. Make students form the habit of proofreading carefully. Students are required to proofread the copied questions carefully, from numbers and symbols, so as to make sure they are good. The checking methods I teach students to calculate are: one pair of copied questions, two pairs of vertical, three pairs of answers. The method of checking questions is to see and think twice. That is: first, look at the whole formula, which is composed of several parts, and think about how to calculate according to the general method; Let's see if there are any special conditions. Let's see if we can use a simple method to calculate. Do not blindly carry out simple calculation, avoid 15 + 5 × 5), which is wrongly calculated as 20 × 1 －0.5< In a word, in primary school mathematics teaching, the purpose of cultivating students' computational ability is not only to improve students' computational ability, but also to improve the development of students' thinking ability, lay the foundation for students' subsequent learning and the improvement of overall mathematical literacy, It depends on the clarity of students' calculation ideas and the rationality and flexibility of calculation methods. It depends on the formation of students' good learning habits and the continuous development of cognitive level. The key lies in Teachers' expectation, motivation, training and cultivation. Therefore, computing teaching is a long-term and complex teaching process, and it is not a matter of one day to improve students' computing ability. As the saying goes, if you want to develop a good skill, you must keep your fists together and keep your tongue in tune. So is the cultivation of oral arithmetic ability. It is a cumulative process, only the joint efforts of teachers and students can be effective.
in the teaching of calculation, let students understand the principles of calculation and know not only what they are, but also why they are. In this way, the teaching of calculation will become lively and colorful. Low grade students' intuitive thinking is dominant, and they graally transition to abstract thinking. Psychologists believe that thinking starts from action. To enable students to master mathematical knowledge and promote the development of thinking, it is necessary to build a bridge between image thinking and mathematical abstraction, and give full play to the role of learning tools. In the teaching of 9 plus a few, students can ask for a stick to study together. In the students' independent operation, we can optimize the ten methods, which will lay the foundation for further study of carry plus and abdication minus. We can also make use of students' existing knowledge and experience to understand new knowledge, construct the main way of teaching knowledge structure, properly use old knowledge in teaching, assimilate new knowledge through analogy, and realize the positive transfer of knowledge, which is concive to students' understanding of new knowledge and recognition of new knowledge structure. For example, if you want to add, calculate, subtract, and seek quotient with pithy formula, students will continue to learn through the connection between knowledge. For another example, the methods of carry plus and abdication minus should be explained clearly, so that students can understand them thoroughly, so that they can correctly and skillfully use the method of calculation< Fifth, cultivate the junior students to develop good calculation habits
good calculation habits directly affect the formation and improvement of students' calculation ability. Many students can understand and master the algorithm, but they often make mistakes, mainly e to the lack of strict training and good learning habits
(1) cultivate students' habit of making drafts. It is a common phenomenon that students don't like to draft when they are calculating. The teacher assigned calculation problems, some students directly oral calculation, some in the book, table or other places, write one or two vertical, as a draft, these are bad calculation habits. Most of the calculation problems, except for a few students who can actually calculate the results directly by mouth, most students probably don't have this ability. In view of this situation, I ask the students to prepare special drafts and make them conscientiously. At the same time, I often go down from the platform to the students in class, and strictly urge the students to implement them. Over time, the students will graally develop this good habit
(2) cultivate students' good habit of careful writing and standard format.
students' habit of careful writing is usually formed. When students do questions, remind them to be careful, see clearly the meaning of the questions, see clearly the data provided by the questions, speak out the quantitative relationship according to the requirements of the questions, and correctly list the formulas for calculation, In the aspect of writing format, students are also required to be meticulous and answer questions according to the correct format. Make students form the habit of proofreading carefully. Students are required to proofread the copied questions carefully, from numbers and symbols, so as to make sure they are good. The checking methods I teach students to calculate are: one pair of copied questions, two pairs of vertical, three pairs of answers. The method of checking questions is to see and think twice. That is: first, look at the whole formula, which is composed of several parts, and think about how to calculate according to the general method; Let's see if there are any special conditions. Let's see if we can use a simple method to calculate. Do not blindly carry out simple calculation, avoid 15 + 5 × 5), which is wrongly calculated as 20 × 1 －0.5< In a word, in primary school mathematics teaching, the purpose of cultivating students' computational ability is not only to improve students' computational ability, but also to improve the development of students' thinking ability, lay the foundation for students' subsequent learning and the improvement of overall mathematical literacy, It depends on the clarity of students' calculation ideas and the rationality and flexibility of calculation methods. It depends on the formation of students' good learning habits and the continuous development of cognitive level. The key lies in Teachers' expectation, motivation, training and cultivation. Therefore, computing teaching is a long-term and complex teaching process, and it is not a matter of one day to improve students' computing ability. As the saying goes, if you want to develop a good skill, you must keep your fists together and keep your tongue in tune. So is the cultivation of oral arithmetic ability. It is a cumulative process, only the joint efforts of teachers and students can be effective.
6. I hope the following answers can help you:
1. Strengthen the teaching of basic knowledge and basic skills, and improve the accuracy of calculation.
the basic knowledge in mathematics is the basis of calculation, which has guiding significance for calculation. The basic knowledge is confused, fuzzy, and the basic knowledge is not solid. In the past, it is the root cause of calculation errors, Therefore, to strengthen and implement the double base teaching is a very practical problem to improve the operation ability, which requires students to do:
(1) memorize some important data formulas and rules, because accuracy is the basic requirement of operation, and correct memory formulas and rules are the premise of accurate operation. Among the mathematical concepts, formulas, rules and properties, some are the basis of operation, explaining the reasons for "why it can be done like this", and some are the methods and steps of operation. It gives the proceres of how to do, that is, algorithms. Students learn the relevant concepts, properties and formulas, and memorize, rules and steps on the basis of understanding, Then, through a series of operation activities (i.e. practice), some kind of operation skills are graally formed
(2) correctly understand the concepts and definitions, and master the derivation of formulas. Only by understanding the derivation of some concepts and formulas, can we achieve the positive, reverse and flexible use of formulas, so as to improve the computing ability. The reason of incorrect operation in mathematics learning is often the result of fuzzy concept, formula, rule forgetting, confusion or rigid application
2. Strengthen the reasoning training of scientific system to improve the rapidity of operation
the poor operation ability is often caused by the weak thinking ability. In teaching, we should strengthen the reasoning training on the basis of students' mastering the basic knowledge. In normal practice, we should make sure that there is a basis step by step, there are sufficient reasons, and pay attention to the sequence of operation. Generally, we should pay attention to the following aspects:
1) training must be orderly. Practice must be planned and carried out step by step. In mathematics teaching, practice can be divided into three stages: first, imitation practice stage. This is an exercise carried out under the example demonstration of the teacher after learning the new knowledge. The difficulty of the selected exercises is not high and the change is not big. Students are required to operate according to the steps and rules of the examples to ensure the correctness of the operation. At this time, it is not appropriate to put forward the speed requirements; Second, the mastery stage. This is a study organized on the basis of students' preliminary mastery of knowledge and skills. The difficulty of the exercises is appropriately increased, and the forms of the exercises are changed. Students are not only required to operate correctly, but also required to summarize and summarize the process, basis and methods of operation after obtaining the correct answers, so as to promote the operation mode to the theoretical level; Third, comprehensive application stage. At this time, we can choose some difficult comprehensive questions to train students' ability to determine the direction of operation and flexibly use the rules
(2) carry out variant exercises. In order to make students skillful, we must organize variant exercises. The so-called variant practice is the change of concepts and rules under the condition that other effective learning conditions remain unchanged. For mathematical operations, it is to change the non essential characteristics of the problem and keep its structural components unchanged. The concrete ways include the change of expression of mathematical sentences, the exchange of conditions and conclusions, the change of problems and backgrounds, etc
(3) understand the effect of practice in time and correct the mistakes in practice in time. In ability practice, it is an effective way to let students know the effect of practice in time. Psychological research shows that if the following feedback information is provided to the students who are carrying out the ability training: ① know the score of each exercise; ② encourage and urge them continuously in the process of practice; ③ analyze the mistakes in practice, then the practice effect will be significantly improved. This is because, on the one hand, students know the problem according to the feedback information, so as to adjust the learning activities and make the practice more effective; On the other hand, it also increases learning motivation to strive for better results or avoid making similar mistakes again
3. The training of thinking flexibility in the process of operation
because mathematical operation is an intelligent operation with clear direction and in line with certain rules, after a certain amount of practice, this kind of operation experience will form a fixed reaction mode and play a tendentious role in the selection of operation direction in subsequent learning, This is the "set" phenomenon in learning. When the formed inertial thinking is consistent with the way to solve new problems, it can quickly respond and get the correct answer. The phenomenon of "shrinking" and "skipping" appears in the process of calculation. This is the positive role of the fixed trend, and also the sign of students mastering knowledge and skills. For example, through the study of "quadratic equation of one variable", students have mastered the skills of using formula method and factorization method to solve quadratic equation of one variable. In the later study of quadratic function, when they encounter the operations related to quadratic equation of one variable, they will quickly make the correct response. When the conventional way of thinking is not completely consistent with or contrary to the solution of new problems, it can not be solved in a simple and flexible way, and the operation process is tedious and tedious, which leads to the wrong solution of the problem. This is the negative effect of stereotype. In practical teaching, we should overcome and prevent the negative effect of "stereotype" and cultivate the flexibility of students' calculation
4. Pay attention to cultivate students' ability of operation rationality
reasonable calculation is to make full use of operation law, proct invariance and quotient invariance, change the data and order of operation, and make the operation as simple, fast and correct as possible. The cultivation of students' simple operation ability is not only the improvement of operation ability, because in the process of cultivation, it must involve the cultivation of observation ability, inctive ability and other abilities, so the cultivation of simple operation ability is actually the cultivation of comprehensive ability. At the same time, it is necessary to cultivate students' overall view of mathematical operation. Before calculation, students should have an overall view of the overall situation. They should grasp the steps of operation, what should be calculated first and then, what are the characteristics of the numbers in the title, and what contains information, etc.
1. Strengthen the teaching of basic knowledge and basic skills, and improve the accuracy of calculation.
the basic knowledge in mathematics is the basis of calculation, which has guiding significance for calculation. The basic knowledge is confused, fuzzy, and the basic knowledge is not solid. In the past, it is the root cause of calculation errors, Therefore, to strengthen and implement the double base teaching is a very practical problem to improve the operation ability, which requires students to do:
(1) memorize some important data formulas and rules, because accuracy is the basic requirement of operation, and correct memory formulas and rules are the premise of accurate operation. Among the mathematical concepts, formulas, rules and properties, some are the basis of operation, explaining the reasons for "why it can be done like this", and some are the methods and steps of operation. It gives the proceres of how to do, that is, algorithms. Students learn the relevant concepts, properties and formulas, and memorize, rules and steps on the basis of understanding, Then, through a series of operation activities (i.e. practice), some kind of operation skills are graally formed
(2) correctly understand the concepts and definitions, and master the derivation of formulas. Only by understanding the derivation of some concepts and formulas, can we achieve the positive, reverse and flexible use of formulas, so as to improve the computing ability. The reason of incorrect operation in mathematics learning is often the result of fuzzy concept, formula, rule forgetting, confusion or rigid application
2. Strengthen the reasoning training of scientific system to improve the rapidity of operation
the poor operation ability is often caused by the weak thinking ability. In teaching, we should strengthen the reasoning training on the basis of students' mastering the basic knowledge. In normal practice, we should make sure that there is a basis step by step, there are sufficient reasons, and pay attention to the sequence of operation. Generally, we should pay attention to the following aspects:
1) training must be orderly. Practice must be planned and carried out step by step. In mathematics teaching, practice can be divided into three stages: first, imitation practice stage. This is an exercise carried out under the example demonstration of the teacher after learning the new knowledge. The difficulty of the selected exercises is not high and the change is not big. Students are required to operate according to the steps and rules of the examples to ensure the correctness of the operation. At this time, it is not appropriate to put forward the speed requirements; Second, the mastery stage. This is a study organized on the basis of students' preliminary mastery of knowledge and skills. The difficulty of the exercises is appropriately increased, and the forms of the exercises are changed. Students are not only required to operate correctly, but also required to summarize and summarize the process, basis and methods of operation after obtaining the correct answers, so as to promote the operation mode to the theoretical level; Third, comprehensive application stage. At this time, we can choose some difficult comprehensive questions to train students' ability to determine the direction of operation and flexibly use the rules
(2) carry out variant exercises. In order to make students skillful, we must organize variant exercises. The so-called variant practice is the change of concepts and rules under the condition that other effective learning conditions remain unchanged. For mathematical operations, it is to change the non essential characteristics of the problem and keep its structural components unchanged. The concrete ways include the change of expression of mathematical sentences, the exchange of conditions and conclusions, the change of problems and backgrounds, etc
(3) understand the effect of practice in time and correct the mistakes in practice in time. In ability practice, it is an effective way to let students know the effect of practice in time. Psychological research shows that if the following feedback information is provided to the students who are carrying out the ability training: ① know the score of each exercise; ② encourage and urge them continuously in the process of practice; ③ analyze the mistakes in practice, then the practice effect will be significantly improved. This is because, on the one hand, students know the problem according to the feedback information, so as to adjust the learning activities and make the practice more effective; On the other hand, it also increases learning motivation to strive for better results or avoid making similar mistakes again
3. The training of thinking flexibility in the process of operation
because mathematical operation is an intelligent operation with clear direction and in line with certain rules, after a certain amount of practice, this kind of operation experience will form a fixed reaction mode and play a tendentious role in the selection of operation direction in subsequent learning, This is the "set" phenomenon in learning. When the formed inertial thinking is consistent with the way to solve new problems, it can quickly respond and get the correct answer. The phenomenon of "shrinking" and "skipping" appears in the process of calculation. This is the positive role of the fixed trend, and also the sign of students mastering knowledge and skills. For example, through the study of "quadratic equation of one variable", students have mastered the skills of using formula method and factorization method to solve quadratic equation of one variable. In the later study of quadratic function, when they encounter the operations related to quadratic equation of one variable, they will quickly make the correct response. When the conventional way of thinking is not completely consistent with or contrary to the solution of new problems, it can not be solved in a simple and flexible way, and the operation process is tedious and tedious, which leads to the wrong solution of the problem. This is the negative effect of stereotype. In practical teaching, we should overcome and prevent the negative effect of "stereotype" and cultivate the flexibility of students' calculation
4. Pay attention to cultivate students' ability of operation rationality
reasonable calculation is to make full use of operation law, proct invariance and quotient invariance, change the data and order of operation, and make the operation as simple, fast and correct as possible. The cultivation of students' simple operation ability is not only the improvement of operation ability, because in the process of cultivation, it must involve the cultivation of observation ability, inctive ability and other abilities, so the cultivation of simple operation ability is actually the cultivation of comprehensive ability. At the same time, it is necessary to cultivate students' overall view of mathematical operation. Before calculation, students should have an overall view of the overall situation. They should grasp the steps of operation, what should be calculated first and then, what are the characteristics of the numbers in the title, and what contains information, etc.
7. Calculation is a basic skill that every middle school student must master. However, in the normal teaching process, we find that students' calculation ability is generally poor. Many children in the calculation, the lack of basic calculation skills and good calculation habits, always think it is "careless", "careless", "not pay attention" to cause calculation errors, lack of attention, students calculate a low success rate. So how to improve students' computing ability? 1、 Analysis and thinking of the external reasons: 1, junior high school curriculum reform weakened the requirements of calculation; 2. The extensive use of calculator weakens the operation consciousness; 3. Students' burden rection, happy ecation and other teaching ideas hinder the healthy development of students' computing ability; 4. The teacher's teaching strength on operation is not enough, and he pays more attention to thinking than operation. Internal reasons: 1. Don't pay attention to the knowledge reserve, don't pay attention to the foundation, don't pay attention to the inction, reflection and summary of mathematical thinking methods. 2. The concept is vague, students are easy to make mistakes because of the fuzzy concept. 3. The formula and nature memory is not accurate. 4. The data processing ability (calculation, sorting, screening, classification discussion, etc.) is poor, 6. Lack of awareness of testing, reflection and summary of calculation problems. 7. Not careful examination, poor expression ability and nonstandard writing. 8. Poor calculation habit, eager for success and careless. This leads me to think? According to the actual situation of students, how to teach students in accordance with their aptitude, teach students in accordance with their aptitude, take corresponding countermeasures, consciously train and cultivate them. So that students can master the basic calculation skills, have good calculation habits, so as to help students improve the accuracy of calculation? 2、 Strategies to solve the problem: 1; 2. Limited time to do questions; 3. Do the questions in a standard way, and don't jump; 4. Make good use of straw paper; 5. Correct the wrong questions and analyze the reasons; 6. Using simple and reasonable method to do the calculation, so as to improve the accuracy of one-time calculation; 7. Improve the speed of solving problems and the ability of solving problems; 8. Cultivate students' good habit of solving problems and interest in learning mathematics;
8. Calculation can be seen everywhere in life. In primary school, calculation teaching runs 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 the attitude of contempt. Some calculation problems are caused by lack of concentration, wrong ing, careless calculation and no checking. In the teaching of computing, I pay more attention to the cultivation of students' good computing ability. I put forward it from the following aspects to share with you< First, cultivate students' interest in computing
"interest is the best teacher". In the teaching of calculation, we should first stimulate students' interest in calculation, make them happy to learn and do, teach them to calculate with oral, written and calculation tools, and master certain calculation methods, so as to achieve the goal of accurate and fast calculation
pay attention to the form of training, stimulate interest in computing. In order to improve students' interest in calculation, we can make students practice some oral arithmetic by combining teaching with daily teaching content. While emphasizing calculation, we should pay attention to the diversification of training forms. Such as: training with games, competitions, etc; Use cards and small blackboards to see and listen; Limited time oral calculation, self compiled calculation problems, etc. Various forms of training can not only improve students' interest in calculation, but also cultivate students' good habit of calculation
stimulate interest with typical examples of Chinese and foreign mathematicians or short stories related to classroom teaching content. In teaching, it is necessary to enumerate the typical examples of Chinese and foreign mathematicians at the right time, or use the little stories that students love to see and hear to add the classroom atmosphere and attract students' attention, which can stimulate students' hobbies and interests in mathematics learning, make students concentrate on calculation, and improve the learning effect in class< Second, cultivate strong will
the cultivation of students' strong will will has a good promoting effect on students' ability to carry out accurate and fast calculation for a long time
practice every day. In the teaching of calculation, oral arithmetic is the basis of written arithmetic. According to the daily teaching content, some oral arithmetic training can be carried out timely and appropriately. In our class, 20 questions of oral arithmetic training every day has become the habit of students. Through the long-term persistent training, not only the students' strong will is cultivated, but also their computing ability is improved
in view of the weakness that primary school students only like to do simple calculation problems, but do not like to do or do not do slightly complex calculation, simple calculation and other problems, we should be good at finding primary school students' thinking obstacles in teaching, and overcome the psychological factors that affect students' correct calculation. It can be practiced in various ways, such as "interesting problem solving", "clever calculation competition", encouraging students to solve more than one problem and so on< Third, cultivate students' good calculation habits
good computing habits directly affect the formation and improvement of students' computing ability. Therefore, teachers should strictly require students to listen to the class seriously, think seriously, finish their homework seriously and independently, and review before practice. They should study hard and carefully in practice. They should not easily ask others or rush to verify the number. We should also develop the habit of self-examination, checking calculation and correcting mistakes
teachers also need to strengthen the guidance of writing format. Standardized writing format can express students' operation ideas, calculation methods and steps, and prevent mistakes and omissions in numbers and operation symbols. Teachers should set an example for students. Such as: problem-solving teaching, examination before, analysis after. Clear thinking and clear hierarchy; The writing on the blackboard is concise and focused
when cultivating students' good calculation habits, teachers should be patient and persistent, unify methods and requirements, persevere and grasp them to the end
computing teaching is a long-term and complex teaching process, and it is not a matter of one day to improve students' computing ability. Only the joint efforts of teachers and students can achieve results.
"interest is the best teacher". In the teaching of calculation, we should first stimulate students' interest in calculation, make them happy to learn and do, teach them to calculate with oral, written and calculation tools, and master certain calculation methods, so as to achieve the goal of accurate and fast calculation
pay attention to the form of training, stimulate interest in computing. In order to improve students' interest in calculation, we can make students practice some oral arithmetic by combining teaching with daily teaching content. While emphasizing calculation, we should pay attention to the diversification of training forms. Such as: training with games, competitions, etc; Use cards and small blackboards to see and listen; Limited time oral calculation, self compiled calculation problems, etc. Various forms of training can not only improve students' interest in calculation, but also cultivate students' good habit of calculation
stimulate interest with typical examples of Chinese and foreign mathematicians or short stories related to classroom teaching content. In teaching, it is necessary to enumerate the typical examples of Chinese and foreign mathematicians at the right time, or use the little stories that students love to see and hear to add the classroom atmosphere and attract students' attention, which can stimulate students' hobbies and interests in mathematics learning, make students concentrate on calculation, and improve the learning effect in class< Second, cultivate strong will
the cultivation of students' strong will will has a good promoting effect on students' ability to carry out accurate and fast calculation for a long time
practice every day. In the teaching of calculation, oral arithmetic is the basis of written arithmetic. According to the daily teaching content, some oral arithmetic training can be carried out timely and appropriately. In our class, 20 questions of oral arithmetic training every day has become the habit of students. Through the long-term persistent training, not only the students' strong will is cultivated, but also their computing ability is improved
in view of the weakness that primary school students only like to do simple calculation problems, but do not like to do or do not do slightly complex calculation, simple calculation and other problems, we should be good at finding primary school students' thinking obstacles in teaching, and overcome the psychological factors that affect students' correct calculation. It can be practiced in various ways, such as "interesting problem solving", "clever calculation competition", encouraging students to solve more than one problem and so on< Third, cultivate students' good calculation habits
good computing habits directly affect the formation and improvement of students' computing ability. Therefore, teachers should strictly require students to listen to the class seriously, think seriously, finish their homework seriously and independently, and review before practice. They should study hard and carefully in practice. They should not easily ask others or rush to verify the number. We should also develop the habit of self-examination, checking calculation and correcting mistakes
teachers also need to strengthen the guidance of writing format. Standardized writing format can express students' operation ideas, calculation methods and steps, and prevent mistakes and omissions in numbers and operation symbols. Teachers should set an example for students. Such as: problem-solving teaching, examination before, analysis after. Clear thinking and clear hierarchy; The writing on the blackboard is concise and focused
when cultivating students' good calculation habits, teachers should be patient and persistent, unify methods and requirements, persevere and grasp them to the end
computing teaching is a long-term and complex teaching process, and it is not a matter of one day to improve students' computing ability. Only the joint efforts of teachers and students can achieve results.
9. Calculation can be seen everywhere in life. In primary school, calculation teaching runs 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 the attitude of contempt. Some calculation problems are caused by lack of concentration, wrong ing, careless calculation and no checking. In the teaching of computing, I pay more attention to the cultivation of students' good computing ability. I put forward it from the following aspects to share with you< First, cultivate students' interest in computing
"interest is the best teacher". In the teaching of calculation, we should first stimulate students' interest in calculation, make them happy to learn and do, teach them to calculate with oral, written and calculation tools, and master certain calculation methods, so as to achieve the goal of accurate and fast calculation
pay attention to the form of training, stimulate interest in computing. In order to improve students' interest in calculation, we can make students practice some oral arithmetic by combining teaching with daily teaching content. While emphasizing calculation, we should pay attention to the diversification of training forms. Such as: training with games, competitions, etc; Use cards and small blackboards to see and listen; Limited time oral calculation, self compiled calculation problems, etc. Various forms of training can not only improve students' interest in calculation, but also cultivate students' good habit of calculation
stimulate interest with typical examples of Chinese and foreign mathematicians or short stories related to classroom teaching content. In teaching, it is necessary to enumerate the typical examples of Chinese and foreign mathematicians at the right time, or use the little stories that students love to see and hear to add the classroom atmosphere and attract students' attention, which can stimulate students' hobbies and interests in mathematics learning, make students concentrate on calculation, and improve the learning effect in class< Second, cultivate strong will
cultivating students' strong will will will have a good promoting effect on students' long-term accurate and fast calculation
practice every day. In the teaching of calculation, oral arithmetic is the basis of written arithmetic. According to the daily teaching content, some oral arithmetic training can be carried out timely and appropriately. In our class, 20 questions of oral arithmetic training every day has become the habit of students. Through the long-term persistent training, not only the students' strong will is cultivated, but also their computing ability is improved
in view of the weakness that primary school students only like to do simple calculation problems, but do not like to do or do not do slightly complex calculation, simple calculation and other problems, we should be good at finding primary school students' thinking obstacles in teaching, and overcome the psychological factors that affect students' correct calculation. It can be practiced in various ways, such as "interesting problem solving", "clever calculation competition", encouraging students to solve more than one problem and so on< Third, cultivate students' good calculation habits
good calculation habits directly affect the formation and improvement of students' calculation ability. Therefore, teachers should strictly require students to listen to the class seriously, think seriously, finish their homework seriously and independently, and review before practice. They should study hard and carefully in practice. They should not easily ask others or rush to verify the number. We should also develop the habit of self-examination, checking calculation and correcting mistakes
teachers should also strengthen the guidance of writing format. The standardized writing format can express students' operation ideas, calculation methods and steps, and prevent mistakes and omissions of numbers and operation symbols. Teachers should set an example for students. Such as: problem-solving teaching, examination before, analysis after. Clear thinking and clear hierarchy; The writing on the blackboard is concise and focused
when cultivating students' good calculation habits, teachers should be patient and persistent, unify methods and requirements, persevere and grasp them to the end
computing teaching is a long-term and complex teaching process, and it is not a matter of one day to improve students' computing ability. Only the joint efforts of teachers and students can achieve results. Here I put forward some methods, hope colleagues correct<
summarize
1 correct method
2 strong interest
3 regular practice
"interest is the best teacher". In the teaching of calculation, we should first stimulate students' interest in calculation, make them happy to learn and do, teach them to calculate with oral, written and calculation tools, and master certain calculation methods, so as to achieve the goal of accurate and fast calculation
pay attention to the form of training, stimulate interest in computing. In order to improve students' interest in calculation, we can make students practice some oral arithmetic by combining teaching with daily teaching content. While emphasizing calculation, we should pay attention to the diversification of training forms. Such as: training with games, competitions, etc; Use cards and small blackboards to see and listen; Limited time oral calculation, self compiled calculation problems, etc. Various forms of training can not only improve students' interest in calculation, but also cultivate students' good habit of calculation
stimulate interest with typical examples of Chinese and foreign mathematicians or short stories related to classroom teaching content. In teaching, it is necessary to enumerate the typical examples of Chinese and foreign mathematicians at the right time, or use the little stories that students love to see and hear to add the classroom atmosphere and attract students' attention, which can stimulate students' hobbies and interests in mathematics learning, make students concentrate on calculation, and improve the learning effect in class< Second, cultivate strong will
cultivating students' strong will will will have a good promoting effect on students' long-term accurate and fast calculation
practice every day. In the teaching of calculation, oral arithmetic is the basis of written arithmetic. According to the daily teaching content, some oral arithmetic training can be carried out timely and appropriately. In our class, 20 questions of oral arithmetic training every day has become the habit of students. Through the long-term persistent training, not only the students' strong will is cultivated, but also their computing ability is improved
in view of the weakness that primary school students only like to do simple calculation problems, but do not like to do or do not do slightly complex calculation, simple calculation and other problems, we should be good at finding primary school students' thinking obstacles in teaching, and overcome the psychological factors that affect students' correct calculation. It can be practiced in various ways, such as "interesting problem solving", "clever calculation competition", encouraging students to solve more than one problem and so on< Third, cultivate students' good calculation habits
good calculation habits directly affect the formation and improvement of students' calculation ability. Therefore, teachers should strictly require students to listen to the class seriously, think seriously, finish their homework seriously and independently, and review before practice. They should study hard and carefully in practice. They should not easily ask others or rush to verify the number. We should also develop the habit of self-examination, checking calculation and correcting mistakes
teachers should also strengthen the guidance of writing format. The standardized writing format can express students' operation ideas, calculation methods and steps, and prevent mistakes and omissions of numbers and operation symbols. Teachers should set an example for students. Such as: problem-solving teaching, examination before, analysis after. Clear thinking and clear hierarchy; The writing on the blackboard is concise and focused
when cultivating students' good calculation habits, teachers should be patient and persistent, unify methods and requirements, persevere and grasp them to the end
computing teaching is a long-term and complex teaching process, and it is not a matter of one day to improve students' computing ability. Only the joint efforts of teachers and students can achieve results. Here I put forward some methods, hope colleagues correct<
summarize
1 correct method
2 strong interest
3 regular practice
10. After entering the society, there are many abilities that you must master. Survival ability is a skill that enables you to overcome difficulties. Working ability enables you to take up this position when you are working. Adaptability enables you to quickly adapt to the new environment. Thinking ability enables you to have in-depth thinking, competitiveness, innovation, communication, teamwork and so on, There are so many.
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