High School Students' Pre-magnetic Field Concept Analysis And Transformation Strategy Research

The concept of magnetic field is formed before the students learn the magnetic field through the observation experience of daily life and the influence of the cognitive method and cognitive level, according to the representative points of view of the cause of the preconception.This study attempts to analyze the preconception of magnetic field before students really master scientific concepts of magnetic field and carry out the corresponding teaching.The study process is based on the theory of conceptual changes and focused on the investigation and analysis of the preconception of magnetic field, and the research on changing strategies for the concept conversion. The CSEM questionnaire is designed with the main content of magnetic field and used to do the survey and investigation on the basis of related theories. The questionnaire survey of 110 students showed the distribution of the preconception of senior students' magnetic field learning. The study analyzes the reasons for the formation of the preconception carefully with the supplement of the interviews. The formation of the preconception is closely related to the differences of grades. The knowledge and methods got in classes is the most important factor in the formation of the preconception while the life experience has a certain influence.Pointedly design the corresponding teaching strategies according to the reasons for the formation of the senior students' preconception. Directly shoot the target in the process of teaching the magnetic field. Effectively change the teaching by changing conceptions. Teaching strategies to be used in the Physics class mainly include inquiry teaching strategy, conception map strategy, cooperative learning strategy and self-repair strategy. Through the teaching of the content of Several common magnetic fields, I hope it can bring some enlightenment to the change of students' preconception in the teaching.