A Study On The Physical Problems Representation In Various Complicated Situations In Grade 3 Of Senior High School

The physics curriculum standard of senior high school(2017 Edition)points out that students should use the physical concepts and scientific thinking formed in the physics curriculum to analyze and solve problems in life,further improve the ability of inquiry,enhance the awareness of practice,develop a scientific attitude,and promote the formation of core quality of Physics discipline.It can be seen that the cultivation of students‘ ability to solve physical problems has a certain role in promoting the formation of the core literacy of physics.The key to problem solving is to represent the problem reasonably,and the complexity of the problem may affect the representation of students,and then affect the problem solving.Therefore,the research on the representation of physical problems with different complexity plays a positive role in improving students' problem-solving ability.Through consulting and analyzing the relevant literature,the preliminary understanding of problem representation is formed,thus the research topic is determined,and then the relevant concepts are defined and the theoretical basis of the research is determined.According to the definition of the complexity of physical problems,simple physical problems and complex physical problems are selected as the cognitive tasks of this study.According to the four levels of representation of physical problems,the scoring rules of information extraction,transformation and problem representation are formulated.Based on the results of the monthly physical examination,56 excellent and poor students were selected as the research objects.This paper studies the relationship between information extraction transformation level and problem representation level,and between information extraction transformation level and problem representation level in solving different complex physical problems by using cognitive task method.SPSS software was used to analyze the research data.Through the analysis of the research data,it is found that:(1)there are significant differences in the level of information extraction and transformation between the students with learning disabilities and the students with learning disabilities,and the level ofinformation extraction and transformation is easily affected by the complexity of the problem;(2)there are significant differences in the representation level of physical problems between the students with learning disabilities and the complexity of the problem affects the problem representation level of the students with learning disabilities Thirdly,there is a significant correlation between the level of information extraction and problem representation.According to the research results,the corresponding teaching suggestions are put forward for the physics teaching of senior three:(1)to promote the formation of problem schema through problem classification;(2)to cultivate multiple representation ability through one problem and multiple solutions;(3)to improve the level of information extraction and transformation through example analogy.