The Research On Model Construction And Testing Tool Development Of Junior Middle School Students' Living Situational Physics Problems Representation Ability

Since the 21 st century,the rapid development of society,the speed of knowledge renewal has been continuously improved,and the requirements for talents have become higher and higher.The talents of the new era must not only have solid professional knowledge,but also be able to calmly and smoothly face the actual problems.solve.The new curriculum also attaches great importance to students' ability to solve life problems,and regards the ability of students to solve life problems as an important goal of physics teaching in middle schools.However,focusing on the current junior high school physics teaching,the cultivation of students' life problem representation ability is not paid enough attention,and the methods and methods adopted are not detailed enough.In order to scientifically and reasonably cultivate and improve the ability of junior high school students to solve problems in life,it is necessary to understand the thinking process and ability structure of junior high school students to solve life problems.Based on the physics problem of living situation,this study studies an important part of the problem-solving process,namely,the representation of the physics problem of living situation,constructing the model of the characterization of the physical problem of junior high school students,and developing the life of junior high school students.A tool for characterizing the physics of physical problems.Problem characterization is one of the important links in problem solving and has a profound impact on problem solving.This research firstly uses the literature method to review the research on the representation of problems at home and abroad,clarifies the research ideas,and discusses related theories.On the basis of theoretical discussion,this paper analyzes the influencing factors,constituent elements and overall thinking process of the representational physics of the junior high school students,and establishes the static model and dynamic model of the characterization of the physical situation of the living situation.According to the model,the model is developed.The evaluation index of the characterization ability test of the junior high school students' life situation physical physics problem,and the test tools with good reliability and validity are compiled according to the indicators.The students' language scores,math scores and physical scores are investigated and collected at the same time of the test.The relationship between the analysis of the above academic achievements and the gender and the ability of students to represent the physical situation of physical problems.The survey results show that the ability of the junior high school students to represent the physical physics of the situation is at a medium level,the students' ability to deal with the problem surface information is low,and the students' life experience and pre-concept have a significant impact on their performance characteristics.The students' physical performance,mathematics scores and language scores are positively related to their ability to represent the physics of life situations.There is no significant difference in the characterization of the physical problems of different gender students.According to the survey results,the following suggestions for improvement are given.Teachers should create a natural and real problem situation when teaching,leaving students with the space to represent the problem;teachers should guide students to analyze the characterization process of physical problems and find out the students' thinking obstacles.In the teaching,we should advocate the problem-solving model of open inquiry,break the students' mindset,and also explore the physical knowledge contained in life in the actual teaching to clarify the pre-concept of students' mistakes.