Study On Difficulty Attribution And Solving Strategy For Stress Analysis Of Senior High School Physics

Physics is a natural science that studies the Basic Laws of motion and the basic structure of matter.It ranges from the size of a elementary particle,to the size of a speck of dust,to the size of the universe.From the research area,it involves mechanics,heat,optics,electromagnetism,atomic physics and so on.Among them,the mechanics part is the foundation of the whole high school physics study,it is the important guarantee of learning the other parts of high school physics well,and it is also the largest part of high school physics teaching,and "Force Analysis" is just a key point and difficult point in mechanics teaching.Many students in grade one of high school often have a fear of difficulty in physics learning from here.Therefore,it is very necessary to carry out the research on this topic,and has the very important theory and the application value.Firstly,the thesis introduces the background,purpose and significance of the research,as well as the content,method and innovation of the research.Secondly,the theoretical basis of this research is discussed.Then,the author examines the difficulties and problems of the students of grade one in the stress analysis by means of the special test questions,and uses the method of statistical analysis to make attribution,and divided into three categories:(1)the students' basic knowledge is not solid enough,especially the understanding of several common forces is not deep enough;(2)the lack of correct thinking and methods to solve problems;(3)the state and process of motion of an object are often neglected or unclear.Then,combining with the teaching practice,the paper focuses on the teaching strategy of the transformation of senior high school students' learning difficulties in physical force analysis,which includes:(1)the guiding ideology of force analysis;(3)the relationship between the force analysis and the moving state of the object;(4)the basic methods of the force analysis,such as hypothesis method,integral method,isolation method,etc.;(5)the general steps of the force analysis,etc.Finally,the research is summarized and relevant conclusions are drawn,as well as some personal considerations and prospects for the future.