Research On The Establishment And Application Of Physical Kinematics Model In Senior High School

The common motions in life are seemingly simple but variable,which makes it difficult to analyse and study them.These motions usually consist of a combination of some basic movements.High school physics is a fundamental subject that studies the most essential and basic laws among substances.The study of complex and variable problems involves refining them,ignoring the minor factors and highlighting the major ones and simplifying and idealizing these factors.This process is known as building physical models.By building physical models,students not only grasp the most essential physical laws and theories,but also achieve transferable application of skills.However,research has shown that students' knowledge of physics modeling is still at a relatively superficial level and they do not have a deep understanding of physics models or the meaning and role of physics modeling.Coupled with the fact that secondary schools use marks to evaluate students,teachers' aim of cultivating students' scientific thinking has not met expectations and the extent of progress in modeling instruction still has room for improvement.The research in this paper focuses on the establishment and application of kinematic models in high school physics,proposing the author's approach to teaching kinematic modeling and for which practical verification was conducted.The research methods consist of literature method,survey method and case study method.Through reviewing the literature,the current situation of research on physics modeling in China and abroad was investigated,and the thinking development of high school students was analyzed and studied,pointing out that the high school stage is the stage when students change from figurative thinking to abstract thinking,and the teaching process must pay attention to the use of methods to exercise students' logical thinking ability and stimulate learning motivation during the teaching process.Further questionnaires were used to understand the modelling skills of our students and then a typical case study was conducted on this basis.In this study,the basic kinematic models involved in high school physics are grouped into three categories: basic physical models,derivative physical models and combinatorial physical models.Based on my own teaching experience,and taking into account the actual situation of students,what physics models are,what kinematic models are useful for,how to build kinematic models and how to use the built kinematic models to solve physics problems are discussed.I used the mass model as an example to build a basic physics model and the vertical upward throwing motion as an example to build a derivative physics model.Then,from easy to difficult,I used the braking problem and the motion of a small block on an inclined plane as examples to demonstrate a combined physics model to analyse the causal relationship between force and motion,i.e.what kind of force is applied to an object would cause the corresponding kind of motion and vice versa.Then the practical teaching of modeling was carried out with the example of "Projectile Motion",and the teaching results were compared and evaluated according to the students' test results after the class and then it was finally concluded that the teaching method of physics modeling proposed in this study can improve the cultivation of students' abstract thinking and logical thinking ability.Finally,the problems in the study were analyzed and summarized and it was found that the questionnaire was not set up adequately enough.The lack of diversity in respondents,the lack of coverage of the respondents and the lack of a control group led to somewhat one-sided findings,with a view to being addressed in future teaching and learning processes.