Research On Teaching Strategies Of High School Physics Image Topics

Through the research of physical images in college entrance examination in recent years:Image is not only the hot and difficult point of examination,but also the difficulty of students in the learning process.Image can directly describe and reflect the physical process and physical phenomenon,can clearly reflect the relationship between two physical quantities,is an effective means to solve physical problems.However,in the existing research hands,there is no systematic research to sort out and integrate the image test questions in the physical part of the national unified test paper ?,but to analyze and study individual test questions,There is no extensive research content and time span,the conclusion of the pertinence and guidance is not strong.This study aims to explore the requirements and direction of the image examination questions for students' ability by combing and summarizing the image examination questions in the national unified test paper ? in college entrance examination in recent five years,It not only enriches the research content of physical image problems in the national unified test paper? in college entrance examination,but also improves the attention of teachers and students to image problems,Through the analysis of the examination questions,this paper explores how to cultivate students' physics core literacy through the teaching of image examination questions,It provides a new entry point and teaching strategy for the traditional physical image teaching of school teachers,and provides new learning ideas and methods for students' learning and test preparation.In this study,through the literature research method,access to relevant research literature,to summarize,Firstly,the concept of image in this study is defined as: Describes the functional relationship between two physical quantities in a physical process.Through statistical analysis,it is concluded that: From 2016 to 2020,the relevant laws and directions of image problems in physical part of the national unified test paper ? in college entrance examination were explored,To explore the examination requirements of students' core literacy behind the examination of image examination questions,and relevant teaching strategy and review suggestions were put forward according to the conclusions.Finally,according to the subject of image questions,the assessment is carried out in the same grade class with different teaching methods,This paper compares and analyzes the results of traditional teaching and targeted teaching,The application of the research results was evaluated and analyzed.This study combs the image problems in the physical part of the national unified test paper?(2016-2020)in college entrance examination and gets the following conclusions:(1)From 2016 to 2020,the proportion of image test questions is increasing,and the proportion of image test questions is increasing.Through the examination of image examination questions,students can obtain information from images,screen information,analyze and process information.Through the processing of information,the corresponding physical model is established,the physical process is analyzed,and the method to solve practical physical problems is found.The demand for students' comprehensive ability is higher.(2)Through the research on the image questions in the national unified test paper ? in recent five years,this paper analyzes and summarizes four key points to solve the physical image problems:(1)The change relationship between the two physical quantities of the image coordinate axis is analyzed,(2)The physical meaning of multi image intersection is analyzed,(3)Analyze the physical significance of slope representation of the image,(4)Analyze the actual physical meaning of the area of the image.(5)Find the specific expression relationship between physical quantities(3)Suggestions for teachers:(1)Before entering the image problem in grade one of senior high school,due to the progress of students in mathematics,they did not begin to learn functions.It is suggested to supplement the mathematical problems related to function images,For example: the expression of a function,the intercept of the image,the tangent slope of the image,the calculation of the slope and other mathematical knowledge are used as the reserve knowledge in the learning of image problems.Let the students master the basic knowledge of physics deduction(2)When entering the image class problem,for the image class problem encountered,According to the four key points one by one analysis,and then comprehensive analysis to establish the corresponding physical model,analysis process,Let students understand how to get useful information through four points.In this process,gradually cultivate students' subject thinking,through the teacher's step-by-step guidance,can obtain useful information from a variety of unfamiliar function images,and can process the information,carry out physical derivation,find out the relationship between physical quantities,build physical model,and finally solve the problem.(3)When the learning of image questions reaches a certain amount,It is suggested to consolidate the image subject after learning the knowledge of dynamics,so as to promote students' mastery of image problems and lay a solid foundation for the study of image problems in electromagnetics.(4)In the study of electromagnetics,As the students themselves have difficulties in learning electromagnetics knowledge,if they master the solutions of image test questions in the early stage,they will have a better understanding.When dealing with image problems here,we mainly guide students to analyze the image independently,strengthen and consolidate students' comprehensive ability in the teaching of image examination questions.(4)Through the comparative evaluation,it is found that in the image problems,Through the four key points,the overall average score of the students in the teaching class is higher than that of the students in the general teaching class;And the highest score appeared in the targeted teaching class.This paper summarizes the image problems in the physical part of the national unified test paper ?(2016-2020)in college entrance examination,The results of the study are analyzed by comparison,Through the practical application of the results,it has a significant help for students in the actual processing and analysis of image test questions.