Description of courseware: In the practice of modern classroom teaching reform, cai assists middle school physics teaching, turning abstraction into image, microcosmic into macro, static into dynamic, and inoperable into operational process. It is of great significance to resolve knowledge difficulties, improve comprehensive ability and promote quality education. The following is my experience report in the teaching process in recent years.
First of all, the application of cai makes the teaching process more intuitive.
From the perspective of epistemology, the starting point of students' cognitive process of things is their perceptual knowledge of things. In the study of physics, students are afraid of physics because they can't understand some abstract theories, which hinders their interest in learning physics. The application of cai technology can intuitively explain some physical phenomena and laws, stimulate students' interest and improve learning efficiency. Mainly in the following aspects:
The application of cai can realize the transformation from abstraction to concreteness. Such as relative motion in mechanical motion, echo ranging, lens imaging and so on. It is difficult for junior high school students to accept and describe clearly. With regard to the content of relative movement, the scene of aerial refueling and the process of constant speed rescue can be demonstrated by computer, with sound effects, so that students can intuitively grasp the content of this section from the all-round experience of sound and image, such as being on the scene.
The application of cai can realize the mutual conversion between static and dynamic. In physics teaching, many physical phenomena appear in a short time, and the process ends before the students can see it clearly. Students can't understand the essence, which brings difficulties to teaching. For example, we can shoot the whole process of flat throwing with a digital camera and then make it. The computer can be used repeatedly to let students know its process, and at the same time, it can use its still picture at a certain moment to illustrate its characteristics when falling. Teaching difficulties are easy to break through, saving time and convenience.
The application of cai can realize the transformation from micro to macro. Due to the limitation of conditions, some physics experiments in physics teaching cannot be demonstrated in classroom teaching, and students can only understand them theoretically. Like atomic physics, students don't understand it deeply and can't remember it. We can use multimedia three-dimensional animation for dynamic simulation demonstration.
As shown in the figure, the neutron and uranium nucleus are distinguished by different colors, so that the neutron hits the uranium nucleus, and with a loud noise, the fission process is seen. When students are shocked by this, their content is naturally unforgettable.
Therefore, the application of cai can sublimate the boring physical theory, and the vivid and intuitive process infects students' learning motivation, making students become passive and active, thus advocating science more, because science has infinite charm.
Secondly, the application of cai can increase the amount of information in the classroom.
2 1 century is an information age, and students studying in schools should also be trained to deal with a large amount of information. Therefore, in classroom teaching, teachers should provide students with more information, more materials and the development of physics to expand their knowledge. In the teaching process, teachers often spend more time writing on the blackboard, especially in the electrical class, writing examples, drawing legends, and using the function of multimedia to display words can make things that would have taken more than ten minutes appear in front of students in a few seconds. Due to the intuitive use of multimedia, the breakthrough process of teaching difficulties has been greatly shortened. In this way, we can have time to explain more relevant knowledge and practical application, guide them to integrate theory with practice, enrich classroom content, fundamentally change the disadvantages of cramming teaching in the past, give students more free time to review and consolidate, optimize classroom teaching and increase classroom information.
Finally, cai is used to promote two-way communication between teachers and students.
In the traditional physics teaching process, teachers mainly focus on students' listening, which is not convenient for the cultivation of students' personality. The application of cai can really change the status of students and teachers, and make students become the main body of learning. When students have problems, they can raise them in time or discuss them with their classmates through computer networks to find ways to solve them through multiple channels. When students have their own views on a physical phenomenon, they can also provide discussion and exchange, and teachers can provide answers, so that students' thinking is more active in two-way communication, which is conducive to cultivating students' innovative consciousness and realizing the modern teaching concept led by teachers and students.
It can be seen that the application of cai in middle school physics teaching is helpful to break through the teaching difficulties, grasp the teaching focus, conform to the current educational development trend, and provide a model for the smooth transition of teaching. However, cai-assisted teaching is still limited to watching and listening, and is basically manipulated by teachers; The popularization and application of cai itself are also restricted by various aspects, such as high requirements for teachers' relevant knowledge, large equipment investment, unbalanced development among regions, and improper use of cai, which will make students doubt science (because everything imaginable can be realized in the use of Cai).
This requires us to use cai reasonably, and the production process should be scientific and stand the test of theory. I believe that with the efforts of educators, we should make use of the advantages of the network and give full play to the collective wisdom to produce more courseware. The proper application of cai in physics teaching will be even more powerful. Enable students to master scientific and cultural knowledge in a relaxed atmosphere, improve students' quality, train talents to meet the needs of modernization and better serve the society.