Present Situation And Case Study Of Junior Middle School Physics Estimation Teaching

Estimation is widely used in real life,especially when the conditions are not sufficient or the results only need to determine the approximate range,the precise calculation is pale,but the estimation can fully show its advantages.For example,estimating a household’s annual water use;The estimated daily passenger flow of bus stations,railway stations and airports during the Spring Festival travel rush;Guess a tourist attractions peak season passenger flow,etc.What we need to pay attention to is:what is the current state of estimation in our country? How do teachers and students perceive estimation? What are the problems with estimation in practical teaching?Therefore,this study was carried out.This article has seven chapters,the first chapter: introduction.This paper mainly expounds the research background,research status at home and abroad,research purpose,research content,research methods and research significance.Chapter 2: Core concepts and educational theoretical basis.By searching,reading and searching for relevant literature and materials,the concept of estimation was clarified and the educational theoretical basis of estimation was sorted out.Chapter three: the direct theoretical basis of estimation.Based on the basic theories of estimation process and method,content and stage,types of estimation,characteristics and principles of estimation,statistics and analysis are carried out on the contents related to estimation in the course standard,middle school examination papers and textbooks,so as to provide sufficient theoretical basis for subsequent research.Chapter four: the current situation investigation.On the one hand,an interview survey was conducted from the two dimensions of teachers and students to understand the cognition and understanding of teachers and students on estimation in junior middle school physics teaching,master teachers’ training of students’ methods and students’ mastery of estimation methods and actual estimation level,and preliminarily discover the current situation and existing problems of estimation in teaching.On the other hand: conduct estimation tests on students to understand the actual situation of students’ solving estimation problems,and analyze and estimate the problems existing in teaching according to the survey results.Chapter Five: Solution and Case Implementation.Based on the questionnaire survey and the test results of the estimated questions,the paper analyzes the problems existing in teaching and their causes.Suggestions are put forward from the perspectives of teachers and students,and cases are shared according to the actual situation.Chapter six: conclusion,deficiency and prospect.Summing up the conclusion of the study and expounding the shortcomings of this paper and the future development trend.This paper attempts to analyze the teaching status quo of physical estimation,summarize the problems existing in the teaching of estimation by students and teachers,put forward solutions according to the problems and design implementation cases.However,this is only a preliminary test,which needs further research and a lot of practice to supplement and demonstrate.