Research On Teaching Practice Of Physics Concept Based On Model Progression ——Take The Subject Part Of The Conservation Law Of Mechanical Energy

Physics concept is the basis of physics learning,and model construction is one of the important elements of discipline core literacy.The learning process of physics in senior high school emphasizes the transformation of concepts and the cultivation of students' core literacy.However,the development of students' understanding of concept and modeling ability is not separated,but coordinated.Therefore,Based on the theory of learning progression and modeling teaching research,this paper integrates the model of learning progression and modeling teaching development,constructs the teaching model of concept understanding and modeling teaching integration progression,and constructs the teaching design on the basis of this framework,which provides the theoretical foundation for teachers' classroom teaching.At the theoretical level: First,the relevant concepts in the chapter of conservation of mechanical energy are sorted out and the conceptual system of this chapter is constructed.Collect the research related to the teaching of "power and energy",through the understanding of teaching materials and course standards,and based on the results of students' pretest,determine the starting point of all levels of concepts and the end point of progress to be achieved through teaching.Second,the existing integrated advanced teaching is described,which lays a theoretical foundation for the teaching of concept understanding and modeling ability.On the practical level: indepth research from the two levels of students and teachers.First,a teaching experiment was carried out in a high school in Guiyang.Two parallel classes of senior one grade were selected as the research objects,and the pretest analysis was carried out on the research objects.Experimental classes using integrated advanced teaching methods,that in comparative classes adopts the traditional teaching method,after teaching,design the questionnaire about "power and energy" to test the teaching effect,through the perception of the classroom as well as to the questionnaire data analysis,draw the following conclusion: the integrated advanced teaching can futher promote students' understanding of concepts,modeling capabilities of experimental classes is strengthen than that in comparative classes.Second,in order to further explore the frontline teachers' understanding of modeling and the use of modeling teaching,a questionnaire survey was conducted among senior high school physics teachers from three schools in Guiyang,and based on the survey results,strategies for improving teachers' modeling teaching ability were proposed.