With the development and popularization of computer technology, computer technology has entered almost every field that human beings are engaged in. The use of multimedia in the classroom has become a trend of modern teaching, and it has also been popularized in urban and rural primary schools. Multimedia teaching greatly stimulates students' senses, makes them use their hands, brains, eyes and ears, and fully arouses their interest in classroom learning, thus achieving the teaching effect of optimizing classroom structure, improving teaching efficiency and stimulating students' creative thinking. So what kind of courseware should we design? I think in courseware design, we should start from the following aspects:

First of all, the design of courseware should stimulate students' interest in learning.

Interest is the best teacher. Confucius said, "Those who know are not as good as those who know, and those who know are not as good as those who are happy." Therefore, in courseware design, teachers should properly grasp the psychological characteristics of primary school students who are particularly curious, active and competitive, strive to tap the interesting factors in the teaching materials, use multimedia-assisted teaching forms that combine words, sounds, images, animations and videos, and use stories, games, intuitive demonstrations, passionate doubts and other methods to create fascinating situations with the best psychological state, so as to mobilize students' enthusiasm, initiative and curiosity. For example, in the teaching of lower grades, some children's songs are added in time according to the teaching content, and some vivid and vivid animations are played to attract children's attention and make them forget their "toys" and concentrate on listening and watching; You can also cultivate teaching content in the soil of stories, and let students realize the truth from stories through courseware making. In the teaching of senior grades, when designing courseware, we should try our best to give students appropriate sensory stimulation through various functions such as pictures, words and sounds. Using multimedia technology, teachers' teaching content is expressed by graphic movement, freeze-frame, flashing, synchronous explanation and color change. For example, in the section of area calculation of combined graphics, a courseware can be made to decompose a house composed of multiple graphics into small graphics. Under the control of the mouse, it can be divided by moving, changing color, synchronously explaining and blinking, which vividly describes the process of graphic division and facilitates students to understand the calculation of house area. Moreover, the design of courseware should combine the life situation, reveal the process and law of the formation and development of things, and let students find mathematical knowledge around them. Let students love mathematics, like mathematics and be interested in mathematics knowledge since childhood.

Second, to give full play to the advantages of multimedia, courseware design should be able to break through the key and difficult points of teaching.

As a primary school math teacher, we should selectively use multimedia for teaching. The design and use of mathematics courseware should be conducive to breaking through the key points and difficulties in teaching. When designing courseware, we can introduce computers in the growth of new knowledge, the fuzziness of observation, the focus of operation, the extension of knowledge, the contrast between old and new knowledge, the obstacles of thinking, the needs of demonstration and practice, etc., and use computers to display the teaching content at multiple levels and angles, so as to improve the teaching efficiency and realize the optimization of teaching. For example, in the teaching of "knowing the circle", the teacher asked, "Who can tell why the wheels of a car are round?" Then the picture shows: a square-wheeled car, "hitched, hitched" on the road. Slowly, the wheels became oval, and the car continued to run, but it was still "lame". Gradually, the oval wheel became round, and the round wheel ran very fast, and the car began to "tick". Obviously, through the dynamic and clear "evolution" process of wheels, students can easily grasp the truth that all radii in the same circle are equal in length. For another example, in the process of learning translation and rotation, in addition to using multimedia to present colorful translation and rotation phenomena, for the difficulty of the number of translation grids of graphics, you can use bright spots to flash a grid, and then use a color-changing line segment in the graphics to move a grid. The courseware is vivid, clear and clear, and the number of translation grids of dynamic demonstration graphics is the number of grids moving between corresponding points or lines, so that students can fully perceive and maintain long-term memory. It is a good way to break through teaching difficulties and easily complete teaching tasks. Multimedia-assisted teaching plays the role of finishing touch.

Third, courseware design should also educate students skillfully.

I remember Tao Xingzhi, a famous educator in China, once said, "Morality is the foundation of being a man. If it is broken at all, even if you have some knowledge and skills, it is useless. Otherwise, people without morality, the greater their knowledge and skills, the greater their sin. " Pupils are young, lack of social experience and have poor discrimination ability, but they have strong imitation ability and great curiosity. They will absorb all the good and bad in society and lack the ability to distinguish. Therefore, it is very important to carry out ideological education for primary school students. How to strengthen the ideological education of primary school students, the classroom is the main position of ideological education, each subject has its own place to explore, and mathematics classroom is no exception. For example, in the teaching of "I grew up with a small tree", at the beginning of the picture display, I specially and carefully selected a picture of children's art with the theme of protecting flowers and early trees, so as to educate students imperceptibly while enjoying the works of art. Resources are at hand, primary school math teacher. As long as we work hard and educate our children skillfully with the teaching content, my children will not only become talents in the future, but more importantly, learn how to be a man.

Practice has proved that the proper selection and application of multimedia in mathematics teaching can not only cultivate students' strong interest in learning, but also improve the teaching effect. In primary school mathematics teaching, we should take students as the center and design courseware according to the characteristics of mathematics knowledge and students' characteristics, so that each student can meet different learning needs and develop students' potential to the maximum extent. While mastering knowledge, students have received good ideological education to varying degrees.