The Investigate And Correction Study Of Senior High School Students' Physics Alternative Frameworks

As a vital field of basic science education,physics education in secondary school has been emphasized all long.Physic is the cornerstone of basic science.And the physical concepts teaching is the key link of successful physical teaching.Students understand the physical world through physical concepts.Students grasp the rules and explain phenomenon on the basis of understanding the concepts.Then construct the sound scientific concepts.Physics is closely related to our life,there are many things in text books can be found in daily life.Students have accumulated a lot of subjective experience before start to learn.These subjective experiences called pre concepts.According to the constructivist learning theory,students' leaning activities are more than just absorb.When students learn something new,they sort out the knowledge first.Then understand it on the basis of previous knowledge.Finally,the new knowledge expands to old knowledge.Students pre concepts is the soil of development od cognitive.Part of the students' pre conceptions are in line with scientific reality,it can help establish scientific concepts.But part of these pre conceptions are fly in the face of reality.These kind of pre concepts are called alternative framework.Students can't build the right concept on the wrong foundation.It's necessary to clear the alternative frameworks of students in the teaching process.I decided to study alternative frameworks because of the great influence of it on the teaching process.The research focus on the formation of alternative frameworks.I hopes to improve the teaching process through the survey results.This study first combed the previous survey results through literature survey.I speculated the possible cause of alternative frameworks according to the connotation of alternative framework and the process of students constructing concepts.Mechanics is the foundation of high school physics,so I decided to investigate from the angle of it.In order to investigate the reasons for the formation of alternative frameworks in students' brains,I decided to conduct a questionnaire survey in the internship school to find out the existence of alternative frameworks in students' brains.The questionnaire was adapted based in the Force Concept Inventory.The basis of adaptation is the research on the core concept of physics by Chinese scholars.With the help of this survey,I hoped to find out which alternative frameworks existed before students entered the classroom,which alternative frameworks is difficult to correct,and which alternative frameworks is new in the learning process.The survey selected two parallel classes in grade one and grade two respectively.By comparing the answers of the students in grade one and grade two,the classification of the alternative frameworks in students' brains was realized.After the questionnaire test,I interviewed the students according to the test results.I tried to find the cause of alternative frameworks by students' explanation of wrong choices.The reason why it is difficult to correct alternative is also the focus of the interview.Then I proposed corresponding corrective strategies according to the results of the interviews.According to the causes and characteristics of alternative frameworks,I designed corresponding teaching strategies,and carried out a series of teaching practices in practice schools to correct the students' alternative frameworks.And continue to improve the strategy in the process of practice.After the teaching practice to carry on the test,carries on the inspection to the practice result.The results show that the policy works.This paper investigates the causes of alternative frameworks and the causes that are not easy to correct according to the cognitive theory and the empirical research.It is hoped that this research can provide reference for teaching and help students to construct physics concepts scientifically.