Daily calculation class
Publish: 2021-05-02 10:21:11
1. The teacher should ask the students to check carefully after finishing the questions, cultivate the students to form a good learning habit of self-examination, ensure the formation of calculation skills, truly let every student get full and comprehensive development, let different people learn different mathematics.
2. How to improve primary school students' mathematical calculation ability
Ningxia Bowen primary school
Tian Xiaojuan
calculation is an important basic knowledge in primary school mathematics,
whether students' calculation ability is strong or not is directly related to their interest in learning mathematics. The calculation ability of primary school students mainly shows whether the calculation is correct,
fast and flexible,
that is to say,
"right,
fast,
clever"
. How to improve students' computing ability? Let's talk about some of my humble opinions, please
teachers give advice:
first, create an exciting environment, cultivate quality, let students say:
"I can do it"
<
"interest is the best teacher"
,
I think teachers should create a certain teaching situation,
let students explore new knowledge with a strong thirst for knowledge,
make the dry computing teaching lively
interesting, establish students' self-confidence, and make students happy to learn and do, Let the students say:
"I can do it"
explain typical examples of Chinese and foreign mathematicians or short stories related to classroom teaching content to stimulate students' interest. For example: before teaching simple operation, I first explained mathematics to the students and creatively answered "
1 + 2 + 3 +
&" 8222&# 8222;
+ 99 + 100
"this
story of the sum of
100
natural numbers creates a good learning situation for students and stimulates their interest in learning mathematics. Students do not consciously have the idea of comparing with mathematicians< As a result,
students are more serious than before in examining the questions,
they are more careful in analyzing the characteristics of the questions, and they can flexibly use the relevant laws and rules to find out the rules of solving the problems, thus enhancing their interest in learning<
according to the characteristics of pupils' inattention,
instability,
vulnerable to the influence of external and some internal factors,
teachers should reasonably arrange the time and quantity of practice,
adopt the method of
"short time,
small amount and many times" to avoid students' fatigue and boredom, So that the students' attention
can be stably concentrated on the exercise object, so as to ensure the accuracy of the calculation
in view of the fact that primary school students are afraid of difficulties when they see difficult problems and simple calculation problems, I adopt the method of "one problem every day"
,
"finding a home for difficult problems"
,
"who is the ever victorious general"
,
"my solution is the most peculiar -
one problem
multiple solutions" to encourage students to conquer difficult problems and overcome difficulties in competition, Cultivate good quality of
will<
ring the implementation of the above methods,
I asked each student to design a statistical chart and record their own scores; Each group designed a statistical chart to record the group's achievements, regular evaluation and
praise. In this way, it not only improves students' computing ability, but also cultivates students' competition and team spirit< Second, comprehensive guidance and reasonable training, so that students can say:
"I can do it too"
1
, comprehensive guidance
(
1
) let students fully "speak"
, and combine operation with language. Change the past calculation
teaching is the student's "calculation" method, let the students fully "say"
,
say their thinking
process, and give appropriate guidance
,
give students good thinking methods< At the same time, teachers and students should pay attention to
,
, and combine operation with language
,
strengthen students' intuitive understanding, effectively develop students' thinking
.
for example,
:
when teaching carry addition within
20,
,
let students fully "
speak at the same time
,
while doing
,
while thinking
,
let students experience the process of "gathering ten"
.
(
2
)
, advocate estimation
,
make students' intuitive thinking active, and then improve their ability of calculation
<
2
, reasonable training
(
1
)
practice oral arithmetic every day. Use
5
minutes every day to strengthen students' oral arithmetic training
,
single item calculation
should be focused on according to the situation that students master,
for the points that students are difficult to master and easy to make mistakes, we should focus on
practice. There are various forms of practice,
,
for example,
:
winning the red flag, confrontation race, relay race, oral arithmetic tour, etc
(
2
) contrast exercises. In teaching,
,
I put the confusing and fallible topics together, let the students
distinguish and compare, through purposeful exercises,
,
make the students correct their mistakes, so as to improve their discrimination ability, and timely evaluate their homework and correct their mistakes
(
3
) error correction exercises. The teacher intentionally wrote out the typical mistakes in the students' homework on the blackboard and asked the students to point out the mistakes, explain the causes of the mistakes and correct them. Teachers should timely
find out the problems in students' homework, collect the wrong questions
,
regularly have a class to correct the mistakes, let
students consult
,
be a "wrong doctor"
, and practice repeatedly, so as to suit the remedy to the case<
Third, overcome carelessness
,
cultivate habits
,
let students say
:
"I really can do it"
.
from teaching practice, I summed up:
lack of serious learning attitude and good learning habits,
is the main reason for errors in mathematics
learning
therefore,
we must pay attention to the cultivation of good calculation habits, so that students can develop a serious and meticulous learning attitude. Teachers must start from little by little, and strictly require students. For errors caused by carelessness in students' homework,
we must not tolerate them, and we must not let students have problems caused by carelessness, It is necessary to establish the idea of "can do the problem must not be wrong"
1
, pay attention to writing. Students are required to write Arabic numerals and operational symbols carefully according to the format,
writing should be correct, so as to effectively avoid the occurrence of "wrong reading". Teachers should take the lead in
fan
,
have clear requirements for students
,
homework design should be careful
,
to avoid students' coping psychology
2
, clear examination. In my opinion, this is the first condition for correct calculation.
,
to examine numbers and
symbols, and to observe the relationship between them<
we should also examine the order of calculation,
make clear what should be calculated first,
what should be calculated later,
,
if it can be simple,
,
we should know well before doing the questions.
Ningxia Bowen primary school
Tian Xiaojuan
calculation is an important basic knowledge in primary school mathematics,
whether students' calculation ability is strong or not is directly related to their interest in learning mathematics. The calculation ability of primary school students mainly shows whether the calculation is correct,
fast and flexible,
that is to say,
"right,
fast,
clever"
. How to improve students' computing ability? Let's talk about some of my humble opinions, please
teachers give advice:
first, create an exciting environment, cultivate quality, let students say:
"I can do it"
<
"interest is the best teacher"
,
I think teachers should create a certain teaching situation,
let students explore new knowledge with a strong thirst for knowledge,
make the dry computing teaching lively
interesting, establish students' self-confidence, and make students happy to learn and do, Let the students say:
"I can do it"
explain typical examples of Chinese and foreign mathematicians or short stories related to classroom teaching content to stimulate students' interest. For example: before teaching simple operation, I first explained mathematics to the students and creatively answered "
1 + 2 + 3 +
&" 8222&# 8222;
+ 99 + 100
"this
story of the sum of
100
natural numbers creates a good learning situation for students and stimulates their interest in learning mathematics. Students do not consciously have the idea of comparing with mathematicians< As a result,
students are more serious than before in examining the questions,
they are more careful in analyzing the characteristics of the questions, and they can flexibly use the relevant laws and rules to find out the rules of solving the problems, thus enhancing their interest in learning<
according to the characteristics of pupils' inattention,
instability,
vulnerable to the influence of external and some internal factors,
teachers should reasonably arrange the time and quantity of practice,
adopt the method of
"short time,
small amount and many times" to avoid students' fatigue and boredom, So that the students' attention
can be stably concentrated on the exercise object, so as to ensure the accuracy of the calculation
in view of the fact that primary school students are afraid of difficulties when they see difficult problems and simple calculation problems, I adopt the method of "one problem every day"
,
"finding a home for difficult problems"
,
"who is the ever victorious general"
,
"my solution is the most peculiar -
one problem
multiple solutions" to encourage students to conquer difficult problems and overcome difficulties in competition, Cultivate good quality of
will<
ring the implementation of the above methods,
I asked each student to design a statistical chart and record their own scores; Each group designed a statistical chart to record the group's achievements, regular evaluation and
praise. In this way, it not only improves students' computing ability, but also cultivates students' competition and team spirit< Second, comprehensive guidance and reasonable training, so that students can say:
"I can do it too"
1
, comprehensive guidance
(
1
) let students fully "speak"
, and combine operation with language. Change the past calculation
teaching is the student's "calculation" method, let the students fully "say"
,
say their thinking
process, and give appropriate guidance
,
give students good thinking methods< At the same time, teachers and students should pay attention to
,
, and combine operation with language
,
strengthen students' intuitive understanding, effectively develop students' thinking
.
for example,
:
when teaching carry addition within
20,
,
let students fully "
speak at the same time
,
while doing
,
while thinking
,
let students experience the process of "gathering ten"
.
(
2
)
, advocate estimation
,
make students' intuitive thinking active, and then improve their ability of calculation
<
2
, reasonable training
(
1
)
practice oral arithmetic every day. Use
5
minutes every day to strengthen students' oral arithmetic training
,
single item calculation
should be focused on according to the situation that students master,
for the points that students are difficult to master and easy to make mistakes, we should focus on
practice. There are various forms of practice,
,
for example,
:
winning the red flag, confrontation race, relay race, oral arithmetic tour, etc
(
2
) contrast exercises. In teaching,
,
I put the confusing and fallible topics together, let the students
distinguish and compare, through purposeful exercises,
,
make the students correct their mistakes, so as to improve their discrimination ability, and timely evaluate their homework and correct their mistakes
(
3
) error correction exercises. The teacher intentionally wrote out the typical mistakes in the students' homework on the blackboard and asked the students to point out the mistakes, explain the causes of the mistakes and correct them. Teachers should timely
find out the problems in students' homework, collect the wrong questions
,
regularly have a class to correct the mistakes, let
students consult
,
be a "wrong doctor"
, and practice repeatedly, so as to suit the remedy to the case<
Third, overcome carelessness
,
cultivate habits
,
let students say
:
"I really can do it"
.
from teaching practice, I summed up:
lack of serious learning attitude and good learning habits,
is the main reason for errors in mathematics
learning
therefore,
we must pay attention to the cultivation of good calculation habits, so that students can develop a serious and meticulous learning attitude. Teachers must start from little by little, and strictly require students. For errors caused by carelessness in students' homework,
we must not tolerate them, and we must not let students have problems caused by carelessness, It is necessary to establish the idea of "can do the problem must not be wrong"
1
, pay attention to writing. Students are required to write Arabic numerals and operational symbols carefully according to the format,
writing should be correct, so as to effectively avoid the occurrence of "wrong reading". Teachers should take the lead in
fan
,
have clear requirements for students
,
homework design should be careful
,
to avoid students' coping psychology
2
, clear examination. In my opinion, this is the first condition for correct calculation.
,
to examine numbers and
symbols, and to observe the relationship between them<
we should also examine the order of calculation,
make clear what should be calculated first,
what should be calculated later,
,
if it can be simple,
,
we should know well before doing the questions.
3. The cultivation of computational ability is an important task in primary school mathematics teaching. From the score of a test paper, almost 70% of the content is inseparable from the calculation. For a long time, the boredom of the calculation class makes the students afraid. For calculation, it is necessary for teachers to start from the characteristics of teaching materials, the actual life of students, the psychological characteristics of children, contact the game activities, and carry out the integration of multimedia, so as to create a learning environment full of children's interest and vitality, and let students enjoy learning and love learning, On this basis, stimulate students' interest, so that the boring teaching of computing coruscate a new life. So, how to cultivate the calculation ability of primary school students? Practice has proved that hierarchical teaching can effectively develop. The following is a summary of the teaching practice of Grade Three:
1. Cultivate students' interest in learning mathematics
as the saying goes, "interest is the best teacher", skillful learning and flexible use will make the relatively boring mathematics learning lively and interesting, and make students interested in learning, so as to get twice the result with half the effort
in order to make students feel fresh all the time, in teaching, calculation exercises can be designed into games, competitions, rush answers, driving trains, listening to calculation, limited time oral calculation, self compiled calculation questions, playing cards, table mates or group competitions to adjust students' appetite. So as to cultivate students' good will quality. A variety of forms of training, so that different levels of students with different foundation on their own basis to enhance the enthusiasm, to improve the level of students' oral arithmetic plays a protective role, teaching in fun, help to activate the classroom atmosphere< Second, mastering basic knowledge is the premise of forming computing power
compared with the calculation of grade one and grade two, the calculation of grade one and grade two is a one-step calculation. They can do oral calculation or even listen to calculation and decide right or wrong at one time. However, as they enter grade three, with the deepening of knowledge, students' knowledge becomes "difficult", for example, to calculate 56 × We have to calculate 8 times to get the result, and two times of the 8 times are the result of multiplication and addition. If we want to do it right, we must not make any mistakes, otherwise it will be invalid. Therefore, basic skills such as multiplication formula and addition and subtraction within 20 are particularly important. And the calculation must be clear. Take first, then merge. Don't be confused
it is found in practice that students should not be in a hurry for success in teaching, but should be helped to start from sorting out the basic knowledge they have learned, use the transfer, and continue to deepen< Third, paying attention to basic training is the key to improve the ability of calculation
oral arithmetic is a basic skill that students must master, and it is one of the most basic and important skills in mathematics learning. Oral arithmetic is related to learning and mastering a series of contents, such as addition and subtraction of multiple digits, multiplication and division, and four calculation of decimal and fraction In the first and second paragraph of mathematics curriculum standard, it is emphasized to pay attention to oral arithmetic. Therefore, primary school calculation teaching should pay special attention to the training of oral calculation
for example, the decomposition of numbers within 10, the addition and subtraction of numbers within 20, and the multiplication and division within the table should be blurted out, which plays a key role in improving the accuracy of calculation. Only by improving the oral arithmetic skills, can students achieve correct, rapid and flexible calculation< 2. Strengthen the training of estimation and develop students' thinking
estimation is the ability to approximate or roughly estimate the operation process or result. Estimation is helpful for students to find out their deviation in solving problems, to rethink and calculate, so as to improve their computing ability. In teaching, teachers should teach students some estimation methods, so that students can form a correct way of thinking and improve the accuracy of calculation
3. Strengthening "practice every day" can promote students to accumulate computing experience
daily oral calculation, appropriate amount of written calculation and comparative training can effectively promote students to continuously accumulate calculation experience and form skills< 4. Effective practice is a means to improve the ability of calculation
in order to make students master the skills of calculation and form the ability of calculation, it is necessary to strengthen the practice. The former is to help students consolidate new knowledge and form skills; The latter is to cultivate students' ability to flexibly use what they have learned to solve practical problems. Practice is not to ask students to do some repetitive and monotonous questions endlessly. In order to improve the efficiency of the exercise, the content of the exercise should be targeted, hierarchical and with a certain slope. The forms of exercises should be flexible. Interesting data and novel questions will stimulate students' interest in doing exercises. In a word, diversified exercises not only enrich the content and form of exercises, but also greatly mobilize the enthusiasm of students to participate in the exercises, and play a promoting role in improving students' computing ability< 5. To cultivate good computing habits is the guarantee of improving computing ability. Good computing habits directly affect the formation and improvement of students' computing ability“ My practice is: in extracurricular every day to arrange a certain number of calculation problems, let students complete independently, pay attention to the cultivation of good calculation habits< Let students form the habit of proofreading carefully. Students are required to proofread the copied topics carefully, ranging from numbers and symbols
2. Students are required to see each data and operation symbol clearly, determine the operation order, and choose a reasonable operation method
3. Let students form the habit of standard writing. The standard writing format can express the students' operation ideas, calculation methods and steps, and prevent them from writing wrong numbers and operation symbols. Students are required to write neatly, with correct format, correct handwriting, no scribble, no alteration, and keep their homework neat and beautiful. Teachers should set an example for students
4. Let the students form the habit of estimating and checking. We should teach them the methods of checking and estimating, and make strict demands on checking as an important part of the calculation process, and advocate the use of estimation to check the correctness of the answers
5. Let students form the habit of mutual inspection. Students are required to check each other's homework on the basis of self-examination after the homework is completed, and then hand it over to the study group leader for review. They can point out the problems at any time, help analyze the causes of errors, correct them in time, and form the habit of consciously checking and correcting mistakes
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. It is not a matter of one day to improve students' computing ability. It is necessary to achieve regular, planned, step-by-step, hierarchical teaching, which varies from person to person. We should pay attention to speed in time, density in quantity, flexibility and novelty in form and content. Only when we teachers and students work together and persevere, can we achieve results< br />
1. Cultivate students' interest in learning mathematics
as the saying goes, "interest is the best teacher", skillful learning and flexible use will make the relatively boring mathematics learning lively and interesting, and make students interested in learning, so as to get twice the result with half the effort
in order to make students feel fresh all the time, in teaching, calculation exercises can be designed into games, competitions, rush answers, driving trains, listening to calculation, limited time oral calculation, self compiled calculation questions, playing cards, table mates or group competitions to adjust students' appetite. So as to cultivate students' good will quality. A variety of forms of training, so that different levels of students with different foundation on their own basis to enhance the enthusiasm, to improve the level of students' oral arithmetic plays a protective role, teaching in fun, help to activate the classroom atmosphere< Second, mastering basic knowledge is the premise of forming computing power
compared with the calculation of grade one and grade two, the calculation of grade one and grade two is a one-step calculation. They can do oral calculation or even listen to calculation and decide right or wrong at one time. However, as they enter grade three, with the deepening of knowledge, students' knowledge becomes "difficult", for example, to calculate 56 × We have to calculate 8 times to get the result, and two times of the 8 times are the result of multiplication and addition. If we want to do it right, we must not make any mistakes, otherwise it will be invalid. Therefore, basic skills such as multiplication formula and addition and subtraction within 20 are particularly important. And the calculation must be clear. Take first, then merge. Don't be confused
it is found in practice that students should not be in a hurry for success in teaching, but should be helped to start from sorting out the basic knowledge they have learned, use the transfer, and continue to deepen< Third, paying attention to basic training is the key to improve the ability of calculation
oral arithmetic is a basic skill that students must master, and it is one of the most basic and important skills in mathematics learning. Oral arithmetic is related to learning and mastering a series of contents, such as addition and subtraction of multiple digits, multiplication and division, and four calculation of decimal and fraction In the first and second paragraph of mathematics curriculum standard, it is emphasized to pay attention to oral arithmetic. Therefore, primary school calculation teaching should pay special attention to the training of oral calculation
for example, the decomposition of numbers within 10, the addition and subtraction of numbers within 20, and the multiplication and division within the table should be blurted out, which plays a key role in improving the accuracy of calculation. Only by improving the oral arithmetic skills, can students achieve correct, rapid and flexible calculation< 2. Strengthen the training of estimation and develop students' thinking
estimation is the ability to approximate or roughly estimate the operation process or result. Estimation is helpful for students to find out their deviation in solving problems, to rethink and calculate, so as to improve their computing ability. In teaching, teachers should teach students some estimation methods, so that students can form a correct way of thinking and improve the accuracy of calculation
3. Strengthening "practice every day" can promote students to accumulate computing experience
daily oral calculation, appropriate amount of written calculation and comparative training can effectively promote students to continuously accumulate calculation experience and form skills< 4. Effective practice is a means to improve the ability of calculation
in order to make students master the skills of calculation and form the ability of calculation, it is necessary to strengthen the practice. The former is to help students consolidate new knowledge and form skills; The latter is to cultivate students' ability to flexibly use what they have learned to solve practical problems. Practice is not to ask students to do some repetitive and monotonous questions endlessly. In order to improve the efficiency of the exercise, the content of the exercise should be targeted, hierarchical and with a certain slope. The forms of exercises should be flexible. Interesting data and novel questions will stimulate students' interest in doing exercises. In a word, diversified exercises not only enrich the content and form of exercises, but also greatly mobilize the enthusiasm of students to participate in the exercises, and play a promoting role in improving students' computing ability< 5. To cultivate good computing habits is the guarantee of improving computing ability. Good computing habits directly affect the formation and improvement of students' computing ability“ My practice is: in extracurricular every day to arrange a certain number of calculation problems, let students complete independently, pay attention to the cultivation of good calculation habits< Let students form the habit of proofreading carefully. Students are required to proofread the copied topics carefully, ranging from numbers and symbols
2. Students are required to see each data and operation symbol clearly, determine the operation order, and choose a reasonable operation method
3. Let students form the habit of standard writing. The standard writing format can express the students' operation ideas, calculation methods and steps, and prevent them from writing wrong numbers and operation symbols. Students are required to write neatly, with correct format, correct handwriting, no scribble, no alteration, and keep their homework neat and beautiful. Teachers should set an example for students
4. Let the students form the habit of estimating and checking. We should teach them the methods of checking and estimating, and make strict demands on checking as an important part of the calculation process, and advocate the use of estimation to check the correctness of the answers
5. Let students form the habit of mutual inspection. Students are required to check each other's homework on the basis of self-examination after the homework is completed, and then hand it over to the study group leader for review. They can point out the problems at any time, help analyze the causes of errors, correct them in time, and form the habit of consciously checking and correcting mistakes
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. It is not a matter of one day to improve students' computing ability. It is necessary to achieve regular, planned, step-by-step, hierarchical teaching, which varies from person to person. We should pay attention to speed in time, density in quantity, flexibility and novelty in form and content. Only when we teachers and students work together and persevere, can we achieve results< br />
4. 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. 1、 Attention to stimulate students' interest in active learning, improve students' computing ability, interest is the internal driving force of learning, is 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. Carry out computing competition activities. For boring calculation, after learning to master the calculation method, we often deal with it casually, resulting in 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. We should 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. 2、 Pay attention to the cultivation of students' good learning habits and improve their computing ability. Good computing habits directly affect the formation and improvement of students' 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 following habits: 1. The habit of careful examination. For practical problems, most students can also 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 writing. In the research, I strictly pay attention to the writing of students' homework and exercises, 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. 3、 Pay attention to the cultivation of students' oral calculation ability, lay a good foundation for calculation, and improve students' calculation ability Primary school mathematics curriculum standard points out: to cultivate students' calculation ability, we should pay attention to the basic training of oral calculation. Oral calculation is not only the basis of written calculation, estimation and simple calculation, but also an important part of calculation 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 the basic method of 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. 4、 In this study, I mainly focus on the cultivation of students' oral calculation 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.
5. Computational ability is a basic mathematical ability. It is an important task of primary school mathematics teaching to cultivate primary school students' computational ability. In primary school, the teaching of calculation runs through the whole process of mathematics teaching, which shows the importance of calculation teaching. Improving students' computing ability is helpful to cultivate students' mathematical literacy, to cultivate students' ability to solve problems, and to establish students' quality of being serious, careful and patient. The level of students' computing ability directly affects the quality of students' learning
however, 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 a contempt attitude. 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. Because the calculation problem is composed of numbers and calculation symbols, which is more abstract and has no vivid plot, we have adopted diversified forms of exercises and diversified ways of practice. Some teachers also advocate that students should be given the scheme of "free calculation" for three consecutive days, and all the students can "free calculation" for one day, so as to stimulate students' interest in learning and improve the accuracy of calculation
Second, pay attention to cultivate students' good learning habits and improve their computing ability
good computing habits directly affect the formation and improvement of students' 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. There are three steps in our teaching: 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, it is necessary to examine the rationality and simplicity of the calculation method, analyze the characteristics of the operation and data, contact the nature and laws of the operation, whether the calculation can be simplified or not, and if the calculation can not be simplified directly, the calculation can be simplified by means of separation, combination and transformation, and then the problem can be solved
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
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 writing of numbers and operation symbols in the title must conform to the standard and be 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< Third, pay attention to the cultivation of students' oral calculation ability, lay a good foundation for calculation, and improve students' calculation ability
the "primary school mathematics curriculum standard" points out: to cultivate students' calculation ability, we should pay attention to the basic oral calculation training, which is not only the basis of written calculation, estimation and simple calculation, but also an important part of calculation 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; 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
in this semester, our group has carried out inter school oral and written arithmetic. From the competition, the speed of oral arithmetic of all students has been improved, and the accuracy rate is also higher than before. And the award-winning students come from different levels, which is concive 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. Then, we can believe that the day when students' computing ability will improve will not be far away. I will continue to make unremitting efforts!
however, 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 a contempt attitude. 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. Because the calculation problem is composed of numbers and calculation symbols, which is more abstract and has no vivid plot, we have adopted diversified forms of exercises and diversified ways of practice. Some teachers also advocate that students should be given the scheme of "free calculation" for three consecutive days, and all the students can "free calculation" for one day, so as to stimulate students' interest in learning and improve the accuracy of calculation
Second, pay attention to cultivate students' good learning habits and improve their computing ability
good computing habits directly affect the formation and improvement of students' 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. There are three steps in our teaching: 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, it is necessary to examine the rationality and simplicity of the calculation method, analyze the characteristics of the operation and data, contact the nature and laws of the operation, whether the calculation can be simplified or not, and if the calculation can not be simplified directly, the calculation can be simplified by means of separation, combination and transformation, and then the problem can be solved
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
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 writing of numbers and operation symbols in the title must conform to the standard and be 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< Third, pay attention to the cultivation of students' oral calculation ability, lay a good foundation for calculation, and improve students' calculation ability
the "primary school mathematics curriculum standard" points out: to cultivate students' calculation ability, we should pay attention to the basic oral calculation training, which is not only the basis of written calculation, estimation and simple calculation, but also an important part of calculation 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; 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
in this semester, our group has carried out inter school oral and written arithmetic. From the competition, the speed of oral arithmetic of all students has been improved, and the accuracy rate is also higher than before. And the award-winning students come from different levels, which is concive 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. Then, we can believe that the day when students' computing ability will improve will not be far away. I will continue to make unremitting efforts!
6. Topic: how to improve the calculation ability of the fourth grade students: introction, first, mental arithmetic, second, oral arithmetic, third, mental arithmetic, oral arithmetic and so on.
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