How to use modern information technology to optimize mathematics classroom teaching? Yu Ruijin, Xixin Primary School in Daimiao Township, Dongping, properly applied modern information technology to subject teaching, and created a humanistic scene of teaching with concrete images, characters, sounds and images, making abstract teaching content concrete and clear, making students' thinking actively participate in teaching activities, and making students pay attention to practical operation and scientifically memorize knowledge. It also helps students to play their initiative in learning, think positively and explore actively, so that teachers can change from teaching-oriented to student-oriented so as to improve teaching quality, optimize teaching process and enhance teaching effect. On this issue, I want to talk about some practices in actual teaching: First, use modern information technology to stimulate students' interest in learning mathematics. Confucius said, "Knowing is not as good as being kind, and being kind is not as good as being happy." Learning is hard mental work. Once students are interested in things and have a sense of beauty, they will turn "hard study" into "happy study". Suhomlinski, a famous educator, said: "In the deep heart of man, there is a deep-rooted need to be a discoverer, researcher and explorer. In the spiritual world of children, this demand is particularly strong. " Therefore, how to effectively stimulate students' interest in learning has always been the theme that our math teachers explore, such as changing teaching attitudes and teaching methods. Now the emergence of information technology in teaching has brought a brand-new situation to the classroom teaching of mathematics in primary schools. First, the introduction of information technology into the classroom has injected vitality into mathematics classroom teaching and brought freshness to students. The vivid pictures that appeared on the screen attracted the attention of all the students. High-quality sound effects arouse students' desire and enthusiasm for learning, and orderly changing words no longer make students feel monotonous and boring about mathematics knowledge. The application of information technology in mathematics classroom teaching can strongly attract students, stimulate their curiosity and form the motivation of learning. For example, when I teach the characteristics of cuboids and cubes, I use information technology to teach them. First of all, I used animation to show the expansion and merger of a cuboid on the screen as a theme picture. Through a rabbit riding a motorcycle around the edge of the cuboid, coupled with wonderful music, it attracted the attention of the students and aroused their strong curiosity. The students are full of yearning for the math class that the teacher is going to take, and their learning enthusiasm is high. Second, information technology can fully mobilize the enthusiasm and initiative of students. Promote students' active learning. Practice has proved that when students are interested in information technology teaching, they will have a high enthusiasm for learning. At this time, as class organizers and planners (teachers), we should create various conditions for them to take the initiative to participate and become the masters of learning. For example, when I was teaching the second volume of The Meaning of Fractions in the fifth grade, I first introduced the story of Pig Bajie and the Monkey King sharing watermelons with animation. In the story, because the Monkey King didn't divide the watermelon into four parts equally, other disciples put forward their opinions. In order to do a good job of unity, * * * protected the Buddhist scriptures of Tang Priest, and now students are needed to help solve the problem. At this time, the students' enthusiasm was aroused, and they were eager to know the following contents. They will learn this knowledge in depth and with great interest, and involve a wide range of related knowledge, showing tenacious spirit of research when encountering difficulties. So as to enliven the classroom atmosphere and achieve the teaching purpose. Second, using modern information technology to optimize the effect of mathematics classroom teaching. The application of information technology in mathematics classroom can not only simplify and visualize the teaching of some concepts, laws and formulas that are difficult for teachers and students to understand, but also facilitate mathematics teachers to better break through the key and difficult points of knowledge, vividly show abstract knowledge to students and turn abstraction into simplicity. From the perspective of students' learning, it is conducive to students' optimization and practice of knowledge and continuous consolidation of new knowledge. (1) In the teaching of concepts, rules and formulas, make full use of information technology to assist teaching, turn abstract into concrete, and let students master knowledge emotionally. Teachers organize students to participate in the process of knowledge formation in class, so that students can think, discuss, operate, answer questions, question and summarize appropriately. Under the guidance of teachers, students can acquire knowledge, develop their thinking and improve their ability. For example, when teaching the meaning of area, I divided it into two parts. First, I teach the area of the surface of the object, then I teach the area of the closed plane figure, and finally let the students get the meaning of the area. In teaching, through the demonstration of information technology, students are guided to get the surface area of the object, the area of the desktop and the area of the playground, so as to get the surface area of the object, what is the square area and what is the area of the plane figure surrounded by the rectangular area, and then sum up the meaning of the area. (2) Introducing information technology into the classroom helps teachers to solve the key and difficult points. For example, in the lesson "Volume and unit of volume's Understanding", the teaching focus is to understand the meaning of volume and know unit of volume; The difficulty in teaching is to establish the correct expressions of 1 cubic centimeter, 1 cubic decimeter and 1 cubic meter. These contents are abstract. I use the role of information technology in teaching to explain and demonstrate. Computers display the size of objects with 65,438+0 cubic centimeters, 65,438+0 cubic decimeters and 65,438+0 cubic meters, and combine with students' operations to turn the abstract into concrete, induce and inspire students, create a good thinking environment, promote the brain and make all students think about problems, except the application of information technology. I also combined three rice rulers into a cube of 1 m3, and let a group of students walk in it, thus realizing that the cube of 1 m3 can hold 12 people. Through vivid demonstrations and experiments, let students understand, discover and innovate, and break through the key and difficult points of this lesson. (3) Make use of the advantages of information technology to optimize the exercise design in teaching and consolidate new knowledge. The consolidation exercise in the new teaching is to use knowledge to solve problems. At this time, it is not simply to repeat what has been learned in books, which requires teachers to carefully design the teaching process and constantly optimize exercises. Information technology has great advantages in this aspect of teaching. The design of "exercises" is more flexible, which embodies the step-by-step development trend of exercises from easy to difficult, and embodies differentiated education: students begin to change from basic exercises of imitation to judgment exercises set to improve their discrimination ability, and then into comprehensive exercises set to mix knowledge. In addition, starting from the basic problems, teachers design the practical content and gradually increase the difficulty, and design certain tentative exercises and expanding exercises, so that students can understand the internal relations and laws of knowledge, guide students to analyze and solve problems from multiple angles, and at the same time, they can also cultivate students to be innovative and change, so that students can gain both knowledge and wisdom. The use of information technology in teaching also has great advantages in this respect. Not only are there many kinds of math problems, but also one problem is changeable. Through multi-level and multi-angle exercises, students can solve problems and learn math in life, thus improving their math ability. Third, use modern information technology to increase teaching density and improve information acceptance. Since the implementation of the new textbook, many teachers feel the same way, that is, the textbook we use has much more class capacity than the old textbook, but the class schedule has not increased, especially for the first and second grade mathematics, which has only three classes a week, which requires teachers to improve teaching efficiency in the classroom. It is difficult to increase the amount of information in each category by past means. The content of teaching materials is limited. After using information technology in classroom teaching, relevant content can be introduced into the classroom in a short time, thus broadening students' horizons and increasing classroom capacity. For example, when I was teaching the section of "Teaching Statistics in Volume 10", I used the Excel function of the computer to design simple broken-line statistics and compound broken-line statistics to teach students how to use Excel functions. I finished the teaching task in one class, which should have been completed in two classes. Students attend classes in the computer room, and teachers use the advantages of information technology to show the key and difficult knowledge in a special way, and draw conclusions through comparison and induction. In the past, the task that required two class hours was compressed into one class hour after the application of information technology teaching. Using information technology to carry out science can reorganize teaching materials as required, increase the amount and density of classroom information transmission, and at the same time fully mobilize students to use a variety of sensory organs, invest in positive thinking, and deepen their understanding of knowledge. In this way, the whole classroom with teachers as the leading factor, students as the main body and information technology as the intermediary has been optimized, which has improved the teaching effect and reduced the burden of students' blind rote learning. In mathematics classroom teaching, the use of information technology is conducive to promoting students' interest in learning, activating students' thinking and cultivating students' innovative spirit. Because the courseware design is vivid, students' right brain intuitive thinking in images is fully trained and improved, which can cultivate students' thinking ability in images. Moreover, because the design and inspiration of problems are easy to be diversified and integrated, it is easy to infiltrate and organize knowledge, and combine the abstract logic of left brain with the concrete image of right brain. In this way, teachers can give full play to students' imagination and thinking ability, constantly cultivate students' innovative ability, and create good conditions for implementing innovative education and cultivating innovative talents. Fourth, use modern information technology to bring life into the classroom. Mathematics originates from life, and there is mathematics everywhere in life. In order to let students learn useful mathematics. Using modern information technology, aim at the best connection point with students' life experience in teaching, build a bridge, make mathematics knowledge lively and interesting because it is close to life, let students feel the life-oriented mathematics, look at the surrounding life with a mathematical eye, enhance students' mathematics consciousness, cultivate students' interest and accomplishment in mathematics, and improve their practical application ability. With the help of modern information technology, students can design familiar, interesting and practical life materials. For example, when I was teaching the fifth grade "Mathematics Activity Class", I recorded the teacher's visit to "Guangzhou Oriental Paradise". 980 students and 38 teachers took part in this activity. Ticket price: adult tickets each 10 yuan, student tickets each 5 yuan, group tickets for more than 30 people can be purchased, and group tickets each 6 yuan. Q: Please design the most economical ticket purchase scheme. The students had a heated discussion and put forward their own design scheme. Create life scenes and highlight the dominant position. Combine the content of teaching materials with life scenes organically, make mathematics knowledge a reality that students can see, touch and hear, make mathematics close to life, and let students truly realize that life is full of mathematics. For example, when I was teaching Ji He Ji, I asked the students to simulate the scene of people queuing to buy tickets and turn the still picture into a vivid scene. In the lively and interesting life, students have deepened their understanding of cardinal numbers and ordinal numbers and learned to deal with problems in life. Integrate information technology into primary school mathematics teaching, make full use of various information resources, and let life enter the mathematics classroom. In short, we should integrate modern information technology into primary school mathematics teaching, play its leading role, create vivid life scenes and stimulate students' interest in learning. Provide abundant information resources, free students from tedious study, form a learning atmosphere of cooperation, communication and active exploration, improve classroom teaching efficiency, promote the implementation of quality education, optimize classroom teaching and enhance teaching effect. So as to effectively cultivate more cross-century innovative talents.