Analysis And Research Of Chemical Experiment Questions In College Entrance Examination From 2015 To 2019

The college entrance examination is the highest educational selection mechanism in China.With the development of a new round of curriculum reform,the system and evaluation of test questions fully implement the requirements of “one core,four layers and four wings”.As one of the important contents of college entrance examination,the experiment text question is an effective way to test the students' ability of chemistry experiment.The study of the examination requirements of the chemical test questions on the students' experimental ability and summarize the characteristics of test questions.It is not only beneficial for teachers and students to grasp the new direction of setting questions,but also beneficial for teachers to improve the subject teaching that based on key ability cultivation.On the basis of selecting the topic,this paper discusses the theoretical basis of the research and the requirements of high school curriculum on students' ability of chemistry experiment.Taking the experimental questions in the national volume ?,? and Beijing papers from 2015 to 2019 as the research objects and the research methods such as literature method,content analysis method,interview method and comparative induction method.Based on the analysis framework of questions,author analyzes the test questions from different angles and summarizes the characteristics of setting questions and the suggestions for review of chemical experiments.Therefore,it can provide reference for teachers and students to review and prepare for exams.This paper mainly includes three parts.The first part: determine the analysis framework of the test questions and analyze the contents in detail.The analysis framework of test questions includes four parts: real situation,practical problem,chemical knowledge and chemical experimental ability.In this paper,the real situation is divided into the situation of chemical subject,life and production and academic research.For the division of chemistry knowledge in the experiment test,according to the course standard and the examination outline,this knowledge was arranged and encoded.Aiming at the ability of chemistry experiment,this paper analyzes the structure of students' chemical experiment ability firstly.And determines the test questions on the students' ability to test chemistry experiments that includes two parts: the degree of students' mastery of chemical knowledge and the ability to solve problems in chemistry experiment.Based on the requirements of students' chemical experiment ability in the course standard and the examination outline,the paper analyzes the elements and specific requirements of students' chemical experiment ability of solving problems in detail.Based on professor Wang Lei's "Study on the Ability and Performance of Chemistry",and analysis of the performance indicators of students' study on the subject of chemistry experiment.Based on the above analysis,this paper constructs the examination system of chemical experimental ability in college entrance examination.Then verifies and improves the project system by combining with the interview of teachers in the front line.This system is used to analyze the examination requirements of experimental questions on students' experimental ability.The second part: based on the framework of test questions,it analyzes the experimental test questions in the national volume ?,? and Beijing test papers from 2015 to 2019.Through the analysis,it is found that the scores and proportions of the three sets of test papers are different,but they are between 25% and 33%,the real situation of the experimental questions is rich in material selection,most of the situations are closely related to students' life and social reality,the chemistry knowledge involved in the experimental test questions basically covers the requirements of the examination outline of the experiment,and the various questions in the test questions are set.The examination of students' ability to solve problems in chemistry experiments focuses on the ability of data processing and the expression of results and the ability to formulate experimental programs,while the examination of themastery of students' knowledge of chemistry experiment focuses on the ability of application practice.The third part: through the above analysis,summarize the characteristics of the experimental test questions,and combine the actual situation of students to put forward experimental review proposals.It is found that the chemical test questions in college entrance examination highlight the real situations creation and emphasize the value of inspiration and education on examination carrier.Select the necessary knowledge in the examination content,strengthen the comprehensive examination,set the problem carefully in the examination form,emphasize innovation,strengthen the examination of the key ability of chemistry in the examination goal.The suggestions of chemical experiment review are: return to teaching materials,pay attention to the basic knowledge and basic skills of chemical experiment,make the experiment review thematic based on the project system,and train the students to correctly answer the thinking mode of chemical experiment questions.According to the above research results that can allow teachers to grasp the focus of the chemical experiment question examination in college entrance examination and carry out chemical experiment review effectively.Students can understand the characteristics of the experimental questions,so as to change the situation that students can't solve the experiment questions.However,due to the time problem,the suggestions of the experimental review in this paper have not been implemented in school,so it needs to be constantly practiced and verified at work.