Interest is the internal motivation and foundation of learning. To be fair, calculation is really boring. It is necessary to cultivate students' interest in computing, stimulate their enthusiasm for learning and stimulate their thirst for knowledge. As teachers, we should try our best to attract students. Because the calculation problem is composed of numbers and calculation symbols, it is abstract and has no vivid plot, so I think the form of the problem should be diversified, such as multiple-choice questions and true-false questions; Try a variety of practice methods, such as relay race, rushing to answer, etc.
Second, strengthen oral arithmetic training.
To cultivate students' computing ability, we should pay attention to the basic oral calculation training, insist on regular practice and gradually achieve proficiency, because any problem is composed of several problems, and oral calculation is the basis of written calculation, which directly affects the correct rate and speed of written calculation. Students with strong verbal ability have high accuracy and speed in written calculation; Students with poor verbal skills often have slow writing speed and high error rate. When the oral calculation ability is strengthened, the calculation speed will increase. Language ability, as an aspect of computing ability, cannot be ignored. So I think paying attention to verbal calculation is an important link to improve computing ability.
Third, cultivate a strong will.
Cultivating students' strong will will will promote students to calculate accurately and quickly for a long time. Keep practicing every day. In computing teaching, oral calculation is the basis of written calculation, and some oral calculation training can be carried out timely and appropriately according to the daily teaching content. In our class, oral arithmetic training of 20 questions every day has become a habit of students. Through long-term persistent training, not only students' strong will is cultivated, but also their computing ability is improved.
In view of the weakness that pupils only like to do simple calculation problems, but don't like to do or do slightly complicated calculations and simple calculations, we should be good at finding pupils' thinking obstacles and overcoming psychological factors that affect students' correct calculations in teaching. We can practice through various methods, such as "solving interesting problems", "clever calculation contest" and encouraging students to solve more than one problem to cultivate students' will.
Fourthly, cultivate students' good computing habits.
Some students have low computing ability, although there are some reasons such as unclear concepts, not really understanding arithmetic and mastering algorithms skillfully. But it is also one of the important reasons for not developing good computing habits; Some students have poor habit of reviewing questions, and often do it only after reading half; Some students' writing is not standardized, numbers and operation symbols are scrawled, and numbers and symbols are copied incorrectly; Some people don't have the habit of checking, and the problem will be solved after checking. Therefore, the same exercise, the same problem, some may be right, some may be wrong. Therefore, in order to improve students' computing ability, we should also pay attention to cultivating students' computing habits.
1, form a good habit of reviewing questions
In teaching, I put forward strict requirements for students, asking them to calculate carefully. Besides, I also give students some methods. For example, I summed up the following methods of checking and calculating: one pair of copying questions, two pairs of vertical, three pairs of calculation and four pairs of calculation. The way to examine the questions is to read more and think more. That is: first look at the whole formula, which is composed of several parts, and think about how to calculate it according to the general law; Let's see if there are any special circumstances and see if we can use a simple method to calculate. If students follow these methods, they can make the calculation have a preliminary guarantee.
For example, when teaching two digits to be divided by one digit 52÷2, we should pay attention to the connection between "the remaining 1 drum and two badminton are combined and then divided" in communication operation and "the remaining 1 tens and two digits are combined and continued to be divided" in vertical calculation. In the teaching of two-digit multiplication with two digits 28× 12, the similarities and differences between "multiplication and addition" and "vertical method" are compared to help students understand "how to write the second part product? Why do you want to write like this? " . This comparison not only promotes students' in-depth understanding of arithmetic, but also helps students to master the algorithm effectively.
2. Develop good writing habits
Computer teaching is of great value for cultivating students' good learning attitude. Mathematics teaching should cultivate students' study habits, such as careful and meticulous homework, neat handwriting, conforming to the format and consciously checking the calculation results.
Demonstration. In teaching, teachers' blackboard writing performance includes writing numbers and drawing horizontal lines with a ruler. The handwriting and symbols of homework should be standardized and corrected neatly, so as to play a subtle role in demonstrating to students.
To sum it up. We pay attention to teaching students the methods of checking calculation: one pair of questions, two pairs of vertical, three pairs of calculations and four pairs of numbers. The examination method is "take a look and think". That is: first look at the whole formula, which is composed of several parts, and think about how to calculate it according to the general method; Let's see if there are any special circumstances and see if we can use simple methods to calculate instead of blindly performing simple operations.
Reflection. In computing teaching, students can be guided to reflect on the following questions: (1) How did you work out this question at first? How to calculate now? (2) What should I pay attention to when calculating? (3) Are there any other calculation methods?
3. Develop good inspection habits
It is necessary to cultivate students' good calculation habits, do oral calculations as much as possible, and not consciously use the draft book for vertical calculations, so as to develop the good habit of checking. In order to let students know the test methods, they can generally use the relationship of elementary arithmetic to test, or they can flexibly use some test methods, such as substitution method to test equations.