Research On Teaching Strategy Of Charged Particles Motion In Electromagnetic Field Of Senior High School Physics

The topic "Motion of Charged Particles in Electromagnetic Field" runs through the entire elective part 3-1 of the current high school physics textbook(2003 PPE),which is one of the key points in high school physics teaching.According to the students' usual study situation and examination results,it can be seen that this topic is also a difficult point in high school physics teaching.At the same time,judging from the situation of the college entrance examination in the past five years,four of them have examined this topic.In addition,through literature analysis,it is found that the research on this topic is mainly journal papers,and there is no complete and systematic special research on this content.Based on the above background,the author chose this research topic.The research paper mainly includes the following contents.Firstly,through the literature review,it analyzes the status quo of the research on this topic and the deficiencies in the current research,and clarifies the significance and value of the research on this topic in combination with the core competencies of physics.Then,according to the high school physics curriculum standards and the corresponding content and internal logic of high school physics textbooks,the main content of this special research and the corresponding methods and ideas are determined.Then,based on the analysis of relevant literature and the corresponding content of high school physics textbooks,combined with the author's own practical teaching experience in the whole three years of high school,the motion of charged particles in high school physics in the electromagnetic field is comprehensively summarized and systematically classified,and one by one Analyzed.Subsequently,in order to further clarify the real status and level of the current high school students in the study of this topic,the author carefully compiled a set of special test papers containing all the types summarized above,and randomly selected them in the third grade of the school where the author taught.of two classes were quizzed.In order to have a more comprehensive and in-depth understanding of the students' learning situation on this topic,after the test,I selected ten students whose test scores were distributed in different fractions to conduct in-depth interviews,from the aspects of learning attitude,psychological activities and thinking process.in-depth communication.Finally,the main learning obstacles that students have or encounter when studying this topic are clarified,including fear of difficulty,poor construction of motion models,ambiguous force analysis,and improper use of geometric knowledge.Finally,based on the analysis of students' learning disabilities,combined with the content,characteristics,internal logical relationship and related research results of this topic,the following corresponding teaching strategies are clearly put forward:(1)Overcoming fear of difficulties,(2)Making good use of analogical thinking,(3)Focusing on force analysis,(4)Skillful using geometric knowledge,(5)Strengthener cognitive integration.etc.Through this special research,the main content and classification of "movement of charged particles in electromagnetic field" in high school physics are further clarified,the current situation and existing problems of high school students' learning of this special topic are analyzed,and corresponding teaching strategies are put forward,in order to improve the For the teaching efficiency and quality of this topic,improve the core literacy of high school students in physics.