Actively respond to the teaching requirements of the new curriculum, let students enter the classroom with problems, solve problems in the classroom, and generate new problems at the same time, which will drive students to further study and explore, and finally let students walk out of the classroom with new problems, which is conducive to the development of students' after-school learning. Give full play to students' dominant position in classroom teaching, pay attention to students' inquiry process and knowledge construction process, and let students experience the general process of scientific inquiry and understand the methods of scientific research. In the whole teaching, efforts should be made to cultivate students' physical thoughts, methods and scientific spirit with knowledge as the carrier, so that students can understand the general thinking process and methods of studying problems while learning knowledge, and thus improve their scientific literacy.

Second, teaching material analysis

Exploring the conditions of induced current is the content of the second section of the fourth chapter of the new physics course (elective 3-2) in senior high school, which is one of the core contents of electromagnetism and occupies a very important position in the whole senior high school physics. This section reveals the internal relationship between magnetism and electricity, and summarizes the law of "magnetism generating electricity" through exploration and experiment, which plays a connecting role in the teaching materials and is the basis for students to learn Faraday's law of electromagnetic induction, Lenz's law and alternating current generation in the future.

In the arrangement of teaching materials, this section starts with the current generated by the cutting of some wires in the closed circuit of junior high school knowledge points, then designs students' inquiry experiments, analyzes and summarizes the phenomena, and finally summarizes the conditions for generating induced current, which is in line with students' cognitive laws.

Faraday's belief in magnetic power generation and his unremitting efforts to discover the law of electromagnetic induction for ten years are introduced into the textbook, which is a good starting point for moral education and also reflects the influence of the textbook on students' humanistic thought and scientific spirit.

Thirdly, the analysis of learning situation.

Students have a certain understanding that some wires of a closed circuit can generate current by cutting magnetic induction lines, but they are still weak in spatial imagination and analysis of the essence of the problem. Therefore, starting from the students' existing knowledge, the conditions of induced current generation are obtained through students' independent learning, exploring experiments, generating problems, cooperating and communicating, and solving problems.

Fourth, teaching objectives.

According to the specific requirements of this syllabus, aiming at students' psychological characteristics and cognitive level, combined with teaching materials, and in line with the principle of making students develop in an all-round way, the teaching objectives of this course are as follows:

1, knowledge and skills

(1) Know what electromagnetic induction is;

(2) The conditions for generating induced current can be summarized according to the experimental facts;

(3) The conditions for generating induced current will be used to judge whether there is induced current in specific examples;

(4) Can tell the characteristics of energy conversion in electromagnetic induction.

2. Process and method

(1) Understand the process characteristics and scientific thinking methods of scientific exploration;

(2) Through experimental exploration, summarize the conditions of current generated by magnetic field, and cultivate students' abilities of observation, operation, exploration and generalization.

3. Emotions, attitudes and values

(1) Stimulate students' curiosity and cultivate their rigorous scientific attitude through the study of this course;

(2) Introduce Faraday's brave struggle for ten years, and finally discover the electromagnetic induction phenomenon, and feel Faraday's scientific spirit of exploring scientific truth;

(3) By introducing and appreciating the beauty of symmetry and conciseness in physics, we can cultivate students' physical aesthetic feelings.