Chemistry Lab Review Strategy Based On Analysis Of New High Level Exam Questions

Since 2014,China has embarked on the most systematic,comprehensive and profound round of reform since the restoration of the unified college entrance examination.With the deepening of the reform,the proposition of the college entrance examination has also undergone drastic changes.With the expectation of "promoting quality-oriented education,promoting educational fairness and scientific selection of talents",the examination content has shifted from the intention of knowledge to the intention of ability,which requires higher and higher comprehensive ability of students.Chemistry as a major subject of college entrance examination,naturally is also the focus of examinee review.Experiment is the basis of chemistry and the charm of chemistry.The test of chemistry experiment in college entrance examination can not only test students’ comprehensive experimental ability comprehensively and reasonably,but also make the most objective and fair evaluation on the teaching effect of chemistry experiment of front-line teachers.This paper uses literature analysis,comparative analysis,interview,case analysis and other methods.Taking the experimental title of 8 chemistry papers of the new College Entrance examination in 2022 as the research object,this paper makes a quantitative analysis of the score proportion,studies the experimental multiple choice questions from two aspects of presentation form and examination content,and makes a statistical analysis of the experimental comprehensive questions from three dimensions: the background and presentation form of the topic,experiment type,examination content and questions.The purpose is to explore the specific "what to test" and "how to test" of the new college entrance examination chemistry experiment questions,so as to solve the problem of "how to prepare for the test efficiently" in the experiment review of senior three.In order to understand the current situation of chemistry experiment review in senior three and students’ thinking barriers,the author interviewed 6 senior three teachers.According to the characteristics of the new college entrance examination experiment questions and the interview results,the teaching strategy of the third year experiment review is put forward,and combined with the research content,the teaching plan is designed to carry out practice,to prove the research results.This study is divided into six parts.The first part is the introduction,which introduces the research background,research status at home and abroad,research content,research methods and research significance.The second part is the analysis of the 8 sets of chemistry test papers of the new college entrance examination in 2022,sorting out the changes of the types of college entrance examination papers in different regions in the past three years.Among the four types of papers,8 sets are scientifically selected,which are national A test paper,National B test paper,Jiangsu test paper,Shandong test paper,Chongqing test paper,Hainan test paper,Beijing test paper and Zhejiang test paper.From various angles to statistical experimental subject,a detailed qualitative analysis of individual exercises,summarizes the experiment respectively choice and experimental integrated the proposition of the character.In the third part,the teachers are interviewed according to the current situation of chemistry experiment review teaching in senior three,the problems existing in the teaching of experiment review are pointed out based on their own experience,and the four major thinking obstacles that students encounter in solving chemistry experiment problems are summarized: poor problem representation ability,lack of knowledge and experience,low degree of knowledge structure and the influence of thinking set are analyzed.The fourth part is based on the previous research content,put forward four strategies of experiment review in senior three:(1)strengthen the basic knowledge of experiment,fully understand the value of teaching materials;(2)Carry out series review of special topics to form experimental knowledge network;(3)Attach importance to experimental strategy teaching and improve reasoning modeling ability;(4)Attach importance to the triple representation ability,fully infiltrate the core literacy,and design the teaching plan "Application of alkali lime in Chemical experiments" to support the research results.The fifth part of the case analysis,to the three teaching cases to carry out the analysis of example research.Finally,the sixth part summarizes and reflects on the research.Due to the limitation of time,lack of personal experience and limited practice times,the proposed teaching strategies need to be gradually improved in the future teaching activities.