1. The situation created should be closely combined with students' real life.
The new curriculum standard clearly points out: let students learn mathematics in life, feel the close connection between mathematics and life, and solve practical problems in life with mathematical knowledge. Close contact with students' real life, so that students can clearly understand that the formula comes from our real life, not from the outside world, which is a good way to return the true colors of mathematical calculation problems, and can also better let students feel the value of mathematics in life, thus stimulating students' interest in learning.
2. Leave enough time and space for exploration. Boglia said: The best way to learn any knowledge is to let students discover it by themselves, because this kind of discovery is the deepest to understand and the easiest to grasp its laws, essence and connections. After the curriculum reform, teachers have such teaching ideas: return the right to study to students; Give students the time they want; Leave the opportunity to do it to students. Teachers consciously guide students to explore and discover, understand calculation and master calculation methods through interlocking questions in the new class. For example, what should be counted first? How to calculate? What is it? Let the students know how to calculate, how to write and why to calculate. As the saying goes, know why, know why. Fusion of arithmetic and algorithm, truly understand arithmetic, improve algorithm, and finally form computing skills.
3. Advocate the combination of algorithm diversification and optimization. Algorithm diversification is the display of students' different personalities and different thinking results. Paying attention to diversity can be said to let students cultivate and improve their thinking ability in the process of communicating their own thinking, and algorithm optimization is the process of improving students' computing ability, which is essential! In math class, it is common to see the diversification of oral calculation methods. With the encouragement of the teacher, the students have all kinds of oral calculation methods. Teachers should not blindly give affirmation: great! Creative! Teachers should give valuable guidance to students' oral arithmetic methods, guide students to compare and communicate, feel the characteristics of different strategies, understand the advantages and disadvantages of different methods, make reasonable judgments and value evaluations, make choices and self-adjustments, and seek simple, easy and fast methods. The teacher said: You can choose your favorite calculation method, but what the teacher likes is that the teacher can better guide the students on the basis of caring and respecting them.
4. Strengthen the cultivation of verbal ability. Oral calculation is an important part of computing power, and it is also the basis of written calculation, estimation and simple calculation. I don't know when the students' verbal ability has declined. Some students are not familiar with multiplication formulas, and some can recite multiplication formulas skillfully, but they can't use them well. Often they have to recite a simple multiplication problem in the table, but they have to recite the required formula from the first line. What makes students' verbal arithmetic so bad?
In my opinion, it has a lot to do with our usual oral arithmetic training. We often see that when teachers are training oral arithmetic, all formulas appear together, so it is difficult to improve the speed of oral arithmetic. Because when other students calculate the last question, some students are already calculating the next question, which loses the meaning of verbal calculation and fails to achieve the desired effect. Therefore, the oral calculation questions should appear one by one. For example, it is very simple to show them cards.
Interesting is effective. Improving students' oral arithmetic ability should be combined with improving students' interest in oral arithmetic. During training, students can stimulate their interest in oral arithmetic by means of competitions, driving trains, scrambling to answer questions and checking passwords. Then, to improve the frequency and intensity of oral arithmetic training, we should not only train step by step, but also improve the class hours, so that the oral arithmetic ability can be improved orderly and effectively.
5. Cultivate good computing habits. Good calculation habit is the guarantee to improve the ability of approximate calculation. In the calculation, the requirements for students should be: right and fast, not right and fast. That is to say, it is required to increase the speed on the basis of right. Students are required to carefully examine the questions, carefully calculate and form the habit of checking.
6. Pay attention to the infiltration of moral education. The Curriculum Standard of Primary Mathematics clearly stipulates that ideological education for students is one of the goals and tasks of primary mathematics teaching. As Suhomlinski said, the goal of intellectual education is not only to develop and enrich intelligence, but also to form noble morality and good quality. It can be seen that it is very important to infiltrate moral education in mathematics classroom teaching. Therefore, teachers should be good at grasping all kinds of educational opportunities, permeate ideological education into the whole teaching process, and let students receive excellent ideas.
In a word, mathematics is a culture and a skill. In the teaching of calculation course, it is necessary to make the teaching of calculation develop and improve harmoniously in three aspects: calculation theory, algorithm and skills, really improve the effectiveness of calculation course, cultivate students' interest in calculation, improve calculation skills and develop mathematical thinking ability.
Mathematics curriculum standard points out that mathematics is an indispensable tool for people's life, work and study. An important task of primary school mathematics teaching is to cultivate students' correct and fast computing ability, which is very important for further study and future participation in productive labor. The present situation of computable teaching is thought-provoking, and students' computing ability is worrying! The calculation accuracy decreases and the speed of oral calculation slows down. How to effectively improve the effectiveness of computing teaching, so that students can improve their computing skills and develop their mathematical thinking ability while cultivating their interest in computing, is worth discussing. First of all, I will talk about my views as follows:
1. The situation created should be closely combined with students' real life.
The new curriculum standard clearly points out: let students learn mathematics in life, feel the close connection between mathematics and life, and solve practical problems in life with mathematical knowledge. Close contact with students' real life, so that students can clearly understand that the formula comes from our real life, not from the outside world, which is a good way to return the true colors of mathematical calculation problems, and can also better let students feel the value of mathematics in life, thus stimulating students' interest in learning.
2. Leave enough time and space for exploration. Boglia said: The best way to learn any knowledge is to let students discover it by themselves, because this kind of discovery is the deepest to understand and the easiest to grasp its laws, essence and connections. After the curriculum reform, teachers have such teaching ideas: return the right to study to students; Give students the time they want; Leave the opportunity to do it to students. Teachers consciously guide students to explore and discover, understand calculation and master calculation methods through interlocking questions in the new class. For example, what should be counted first? How to calculate? What is it? Let the students know how to calculate, how to write and why to calculate. As the saying goes, know why, know why. Fusion of arithmetic and algorithm, truly understand arithmetic, improve algorithm, and finally form computing skills.
3. Advocate the combination of algorithm diversification and optimization. Algorithm diversification is the display of students' different personalities and different thinking results. Paying attention to diversity can be said to let students cultivate and improve their thinking ability in the process of communicating their own thinking, and algorithm optimization is the process of improving students' computing ability, which is essential! In math class, it is common to see the diversification of oral calculation methods. With the encouragement of the teacher, the students have all kinds of oral calculation methods. Teachers should not blindly give affirmation: great! Creative! Teachers should give valuable guidance to students' oral arithmetic methods, guide students to compare and communicate, feel the characteristics of different strategies, understand the advantages and disadvantages of different methods, make reasonable judgments and value evaluations, make choices and self-adjustments, and seek simple, easy and fast methods. The teacher said: You can choose your favorite calculation method, but what the teacher likes is that the teacher can better guide the students on the basis of caring and respecting them.
4. Strengthen the cultivation of verbal ability. Oral calculation is an important part of computing power, and it is also the basis of written calculation, estimation and simple calculation. I don't know when the students' verbal ability has declined. Some students are not familiar with multiplication formulas, and some can recite multiplication formulas skillfully, but they can't use them well. Often they have to recite a simple multiplication problem in the table, but they have to recite the required formula from the first line. What makes students' verbal arithmetic so bad?
In my opinion, it has a lot to do with our usual oral arithmetic training. We often see that when teachers are training oral arithmetic, all formulas appear together, so it is difficult to improve the speed of oral arithmetic. Because when other students calculate the last question, some students are already calculating the next question, which loses the meaning of verbal calculation and fails to achieve the desired effect. Therefore, the oral calculation questions should appear one by one. For example, it is very simple to show them cards.
Interesting is effective. Improving students' oral arithmetic ability should be combined with improving students' interest in oral arithmetic. During training, students can stimulate their interest in oral arithmetic by means of competitions, driving trains, scrambling to answer questions and checking passwords. Then, to improve the frequency and intensity of oral arithmetic training, we should not only train step by step, but also improve the class hours, so that the oral arithmetic ability can be improved orderly and effectively.
5. Cultivate good computing habits. Good calculation habit is the guarantee to improve the ability of approximate calculation. In the calculation, the requirements for students should be: right and fast, not right and fast. That is to say, it is required to increase the speed on the basis of right. Students are required to carefully examine the questions, carefully calculate and form the habit of checking.
6. Pay attention to the infiltration of moral education. The Curriculum Standard of Primary Mathematics clearly stipulates that ideological education for students is one of the goals and tasks of primary mathematics teaching. As Suhomlinski said, the goal of intellectual education is not only to develop and enrich intelligence, but also to form noble morality and good quality. It can be seen that it is very important to infiltrate moral education in mathematics classroom teaching. Therefore, teachers should be good at grasping all kinds of educational opportunities, permeate ideological education into the whole teaching process, and let students receive excellent ideas.
In a word, mathematics is a culture and a skill. In the teaching of calculation course, it is necessary to make the teaching of calculation develop and improve harmoniously in three aspects: calculation theory, algorithm and skills, really improve the effectiveness of calculation course, cultivate students' interest in calculation, improve calculation skills and develop mathematical thinking ability.