First of all, the topic is put forward:
Some teachers think that in today's reform and the advent of advanced computing tools, just click the computing tool and the numbers will come out. What's the use of learning calculation, oral calculation and mental calculation? In fact, this idea is wrong. The improvement of oral calculation ability is directly related to students' calculation ability and basic skills, and calculation is the basis of mathematics. As the saying goes: "The embankment of a thousand miles begins with a single step." Indeed! How to further study if you can't lay a good foundation? The new Curriculum Standard points out: "The foundation and development of mathematics should be emphasized in the compulsory education stage." According to many years' teaching practice, the math teachers in the middle-grade group in our school found that students have low correct rate, slow calculation speed and insufficient optimization of calculation methods, which has a great relationship with students' current oral calculation ability. The ability of oral calculation plays an extremely important role in students' basic operational ability. It is very necessary to cultivate students' oral expression ability. Oral arithmetic is also related to whether students' learning mood is high and whether they are willing to learn. Looking at the top students and poor students, it is not difficult to find that the students who learn well have strong verbal skills, do their homework quickly and freely, and are relaxed and happy. Although they are doing problems, they seem to be playing. They have tasted the fun of learning and love learning more. Poor students, on the other hand, have poor foundation and poor oral calculation ability, which directly affects basic calculation, so they have a headache when they start a question and gradually have a fear of difficulties.
Therefore, it is imperative to do a good job, especially at the grassroots level. We imagine starting with the study of students' oral arithmetic training cycle, improving students' various computing abilities and stimulating students' interest in learning mathematics, so as to comprehensively improve students' mathematics learning level and teaching quality in our school. As the saying goes, "you can't hang an abacus around your neck, which means that people should have the ability they deserve." Only human wisdom is infinite. Aren't all computing tools invented by human beings? And this extraordinary ability of human beings comes from the accumulation of knowledge, starting with simple oral calculation; Besides, calculators sometimes break down. How do people who use calculators for basic calculations use them? The solidity of oral arithmetic is directly related to the development of other abilities and intelligence, and one of the problems that mathematics reform pays great attention to is the cultivation of ability, which is also the main purpose of teaching and the need of cultivating and bringing up talents. In middle school mathematics teaching, oral arithmetic teaching occupies a certain proportion. The ability of oral calculation will directly affect the formation of the calculation ability of middle and senior grades. However, in the actual learning process, some students' oral calculation accuracy and speed often fail to meet the specified requirements, and there will always be such mistakes in calculation. Strengthening oral arithmetic is an important trend of mathematics reform?
Second, the definition of the concept
The verbal calculation is also satisfactory. It is a calculation method that directly calculates numbers without using calculation tools, mainly relying on thinking and memory. It is not only the basis of written calculation, estimation and simple calculation, but also an important part of calculation ability and the basis of learning mathematics. Moreover, the level of speech ability has an extremely important influence on children's basic computing ability; The training of speech ability is helpful to cultivate children's quick response ability. If the oral calculation is wrong, the written calculation, estimation and simple calculation will inevitably make mistakes. "Curriculum Standard" points out: "It is necessary to strengthen the cultivation of students' computing ability and strengthen students' oral calculation." Therefore, only by doing a good job in oral calculation teaching, strengthening oral calculation training and developing good oral calculation habits can students' oral calculation ability be improved and the correct rate of written calculation be improved.
Third, the content of the study.
Through experimental research, the following contents are mainly studied:
1. Does students' interest in oral calculation affect the calculation speed and accuracy?
2. Can students with poor computing ability be tapped through oral arithmetic training?
3. Oral arithmetic training can improve the stability of children's attention, thus promoting the development of children's computing ability.
4. Problems suitable for students' oral arithmetic training, suitable training period and training effect.
Fourth, the research object
All the students in the fourth grade of Shuigui Primary School.
Research method of verb (abbreviation of verb)
1. survey method: investigate, analyze and study students' existing language ability, and lay a realistic foundation for research.
2. Literature method: By searching and studying relevant theories, effective theoretical support is established to guide the experimental work in each experimental stage.
3. Arrange exercises for each class. According to the teaching content and students' actual situation, each math class will arrange 3-5 minutes of oral arithmetic practice, which lasts for a long time and has good results.
4. Use a verbal card to calculate. You can count the names by mouth, in the order of seats, in groups, horizontally and vertically, and count them quickly one by one like driving a train.
5. Listening and counting exercises. The teacher read the questions orally and asked the students to write the numbers in the oral calculation book. After reading the questions, the teacher asked the students to report the numbers. You can also find several students to sign up continuously. This kind of exercise is more difficult, which requires students to listen carefully, think actively and calculate quickly, and use their ears, brain, hands and mouth together.
6. Various forms of transformation practice. Sight-and-calculate training, listening and calculating training, forced oral calculation, relay race and other forms of practice.
7. Give individual guidance to students who are slow in calculation, let them practice from the basics first, and let them feel the happiness of success. In this way, they have the confidence to learn oral arithmetic well. Then there is pairing, a group of activities, which not only helps the students who are slow in verbal calculation, but also exercises their verbal calculation ability.