In the traditional teaching mode, teachers mainly tell stories, and students can only passively accept book knowledge. Due to the backwardness of teaching methods, students can't have a perceptual understanding of some abstract things, so they can only rely on the teacher's "theory on paper", and students' learning is often "boring". In order to change this teaching situation, educators have explored various new teaching methods, but they have never been able to get out of this strange circle. Students get information like frogs at the bottom of a well. With the continuous development of information technology, multimedia computers and the Internet have entered the homes of ordinary people, changing people's way of life and work, and also changing the way of learning. Education is facing an unprecedented revolution. We should constantly explore new teaching methods in teaching. The CAI courseware of rectangular and square area calculation I designed comes from two aspects: one is the auxiliary teaching software running on the teacher's big screen to guide students to learn and summarize the essence of this lesson; The other is interactive self-learning software running on LAN. In class, I ask the students the central question of this class through the big screen projection, and then the students open the self-study software on the computer to study freely. Although I am a junior three student, everyone can use what they have learned in computer class to operate this software, just click the mouse and hit a few numeric keys. Primary school students' thinking is mainly in images and gradually develops into abstract thinking. For the content that students can't accept, there are animations in the software, which are vivid. Students can tell at a glance that they are interested in learning. Students also choose learning content according to their own abilities. Everyone enjoys full freedom and will never be led by the teacher again. Learning after class is very easy.

2. Multi-level content, learning from people

This phenomenon often occurs in regular teaching. Teachers' teaching is always difficult to satisfy all students' tastes. Some think that the teacher's questions are too simple to eat enough, while others feel that they are not enough to eat. How to solve this contradiction in classroom teaching? In the self-taught courseware "Calculation of Rectangle and Square Area", I put the knowledge I want to master in the basic chapter and the extended knowledge in the difficult chapter, so that excellent students can challenge difficult problems while understanding the basic knowledge. They are attracted by these interesting questions, and the more they learn, the more energetic they are, and the problems are solved. For students who are usually slow to respond, they will not feel afraid of difficulties. According to the dynamic display of the computer, students mobilize a variety of senses to participate in learning, and organically control the display frequency, so that the knowledge they have learned is easy to master. Some students try to complete the basic knowledge easily and enter the difficult problem at the same time. In this way, a few people can make several difficult questions, eliminate the fear of difficulties, and greatly mobilize the enthusiasm of all students, so as to master knowledge, cultivate students' various abilities, and achieve twice the result with half the effort.

3. Combine learning and playing, and entertain and educate.

In the courseware, I also designed a carpooling game, the purpose is to consolidate the learning content and cultivate students' innovative consciousness. The rules of the game are: on the right is a truck plan, which consists of rectangles and squares marked with area numbers, and on the left are rectangles and squares marked with side length numbers. Drag the graphic on the left to the corresponding position on the right with the mouse, turn it into a beautiful car, and then play attractive animation. After the homework was finished, the students were all in high spirits, which stimulated their interest and enthusiasm for learning. Constructivism believes that the primary task of teaching is to create situations, and its purpose is to keep students in a good atmosphere, not to study for the sake of learning, to make students study easily and happily, and to integrate knowledge teaching into activities. My design is to let students master what they have learned by playing their favorite games, and at the same time cultivate creative thinking and understand the graphic design of automobiles.

4. Resource utilization and rational integration

The topic being discussed in my class is "Computer is not only a teaching aid, but also a learning tool" proposed by Beijing Jingshan School, and it is also a successful experiment of the national key scientific research topic "Integration of Computer and Various Subjects" in our school. At present, it is unrealistic for teachers to make their own courseware for daily teaching, and it usually takes dozens of hours to design a courseware by themselves. Therefore, teachers can introduce excellent business teaching software into the classroom, and in order to reflect their own teaching ideas, teachers must carry out secondary development. Universal multimedia authoring tools can directly call external applications without writing interface programs. I successfully used AUTHORWARE to call the teaching software developed by Beijing Hope Company into my own program, which can be slightly modified and added with some self-edited content, which is only a few classes. It is feasible in practical teaching, and it will take shorter time to make a simple demonstration with POWERPOINT. Not only that, but also hundreds of courseware made by DIROCTOR, FLASH, FRONTPAGE, Founder Aosi, Geometry Sketchpad, VB, VC, etc. Going to China Education Network every day can meet the needs of teachers in different disciplines. You can also upload your own designed software, communicate with others, and learn from each other's strengths, which is beneficial and harmless.

In a word, we are facing the challenge of knowledge economy. For educators, it is both a challenge and an opportunity. We should change our ideas, innovate constantly, face up to reality, accept new things, don't be picky, greet the new era of online teaching with great enthusiasm, and do our best to push the school education reform to a full climax.