Statistical Analysis And Teaching Strategy Research On Chemical Graphic Problems Of The College Entrance Examination Limited In National Volume Papers

As one of the most important method of talent selection,the college entrance examination at present stage in China is of great significance.The National Matriculation Entrance Test has long been the focus of researchers.The test of chemistry always pay attention to the close connection between theories and practical applications,related scientific technologies,social economy and ecological environment to promote the development of students from understanding,recognizing,analyzing,speculating,reducing,arguing to inquiring and innovating.In recent years,the test of chemistry has followed the principle of “making innovative changes while maintaining traditions” to guarantee scientization,justification and impartiality of college entrance exam.Statistical comparison and interview of teachers are the main researching methods of the research and set chemical graphic problems as the main studying object.This article will conduct statistical analysis and comparison research for the chemical graphic problems in the science integrated test papers(the chemical part)of national volume papers from 2016 to 2020,trying to do qualitative and quantitative research on the number,score and content on the basis of data statistics.It aims to explore the trend of problem set in chemistry discipline and provides some referenced data for the chemistry teaching and preparation of college entrance examination.Meanwhile,combining the typical example of the university entranceexam questions,the article will be carried on a critical discussion on the technology of designing the chemical graphic problems and this is for providing of certain technical support for future designing and researching of the problems.In addition,in view of the current teaching situation of the chemical graphic problems,it makes in—depth interviews with 20 chemistry teachers,According to the result and analysis of interviews,it puts forward some corresponding teaching strategies,expecting to provide certain theoretical enlightenment for the chemistry teaching in high school.This paper includes seven chapters.The first is introduction,including the reason,present situation,purpose,significance,content and methodologies of this research.The second is an overview of chemical graphic problem,which includes definition of chemical graphic problem,analysis of the characteristics,types and functions of chemistry graphic problem.The third is the data statistics and preliminary analysis on chemistry graphic problems appearing in various national volume papers in recent five years.Besides,it has made a separate statistics and analysis on the comprehensive chemical graphic problems.The fourth is the analysis of the statistics based on three dimensions:number,score and content.What's more,the graphic's type has become more and more diversified and the presenting style is more and more comprehensive.The fifth part is a study on the technology of designing the chemical graphic problems,which shows the test development of the test,which is valued-instructed,literacy-oriented,ability-dominant,and knowledge-based.The sixth part is about the teacher interviews and analysis targeting at the current teaching situation of high school chemistry graphic problems.Furthermore,five teaching strategies will be brought out according to the result of interview and data analysis.The seventh part is conclusions and reflections.including conclusions and insufficiencies.