Problems And Strategies Of Electrochemistry In The First Round Review Of Senior High School

At present,the chemistry curriculum standard for test textbook published by People's Education Press during senior school,must include Required Course I,Required Course II,Elective Course III,Elective Course IV and Elective Course V.The current teaching order of new curriculum is that the Required Course I and Required Course II are taught during the first academic year,while the elective courses are taught during the second academic year.And during the third academic year,there are three rounds of review.The electrochemistry is first introduced in the second chapter Chemical and Electrical Energy of Required Course II,and then described comprehensively in the four chapter Electrochemistry Foundation of Elective Course IV.In the first round of review,the traditional model follows the same order.The knowledge of electrochemical modules is based on primary cells and electrolytic cells,including oxidation reduction,ion balance in aqueous solution,chemical reaction and energy,chemical reaction rate and chemical equilibrium,elemental compounds,etc..The purpose of this paper is to study the internal relationship between the knowledge of electrochemical modules,to explore an optimized model of the knowledge review about the electrochemical module,and to keep applying and improving it in practiccal teaching.The paper is composed of five chapter.The first chapter is the question presentation and research design.In this part,first of all,35 chemistry teachers in Yibin No.2 Middle School were interviewed to collect their suggestions about the traditional review model;then,the Class 2016's knowledge mastery of the electrochemical module is analyzed;at the same time,the test questions on electrochemistry appeared in the college entrance examination papers in the last three years are analyzed,and combining with the core elements of students' development,a brief description of the research objectives,contents and methods are given.The second chapter is the theoretical basis of the study.Based on the students' core competence,the zone of proximal development,the theory of constructivism and the law of memory,the feasibility of optimizing the review order is studied.The third chapter analyzes the internal knowledge of the electrochemical module,and proposes the solution strategies.From the material structure to the periodic law of elements to oxidation reduction to electrolytic cell,the scattered knowledge is integrated tying back to the main line of electronic gains and losses,which is in accordance with the students' zone of proximal development.Then,the scattered contents of the electrochemical module in the high school chemistry textbook(PEP Version)are integrated,to find an optimized review model.The fourth chapter is the application of the optimized first-round review model in practical teaching.The author applies the optimized review model of the electrochemistry review order in Class 3 and Class 5 in Yibin No.2 Middle School,which is enrolled in 2016,and integrates the chemistry textbooks of high school.According to the core competence development and academic achievement of the students in class 3 and class 5,the data shows that these 2 classes are superior to the other class of the same year,approving that the optimized review model of the electrochemistry review order is effective.The author intends to implement this review model in the next Grade 3 students in Yibin No.2 Middle School.The fifth chapter are conclusions,suggestions,and thinking.The chemistry knowledge in senior high school is relatively easy and undemanding to students' comprehensive quality,however,students are not confident enough in chemistry,whose reason is that the knowledge of chemistry is scattered,complex,enormous and miscellaneous,while academic tests are often conducted in a comprehensive model.Integrating the knowledge of electrochemical module and adjusting its review order has taken effect.In the future,the author will strive to further integrate high school textbooks during the first round of review,so that the whole knowledge module can be more systematic,make students' learning more easily,and can let the comprehensive quality of students achieve all-round development.