The Research On Cohesion Of “electrochemistry” In Middle School Chemistry Textbooks Of People's Education Press Edition

The constructive learning theory points out that the learning process of learners is the process of constant reintegration and internalization of old and new knowledge.In this process,the connection of old and new knowledge is of vital importance.In the process of students' middle school chemistry study,from compulsory education stage to the senior high school compulsory and senior high school elective,the content of knowledge shows a relationship of development from shallow to deep.And the level of students' cognition is rising continuously,which will definitely result in the existence of knowledge gradient.This research takes the "electrochemistry" related content as the research object,and carries out a relatively detailed cohesion study from the perspectives of the junior high school and senior high school curriculum standard of People's Education Press,the content of the textbooks and the column of the textbooks and discovered that the knowledge of electrochemistry related redox reaction,ion reaction,corrosion and protection of metals,conversion of chemical energy and electric energy,and activity of metals are embodied in the phases such as Year 9,Senior High School Compulsory(1?2),Senior High School Elective(1?4?6)and the requirements of the curriculum standard and the depth of the content are gradually rising.Through students' questionnaires and teacher interviews with year 11 students in No.64 Middle School of Taiyuan City,we found that teachers realized the importance of cohesion in the teaching process of electrochemistry,however,there is a lack of cohesive teaching methods,and it is difficult to implement a reasonable and interconnected cohesive teaching;moreover,the students are lack of the positive and active learning attitude,reasonable learning habits and effective learning methods.Based on the comparative study of teaching materials and the problems of cohesive teaching in middle schools,this paper puts forward corresponding teaching suggestions from three aspects of teachers(the cohesion of the content of teaching materials,the cohesion of teaching methods,the cohesion of teaching means,the cohesion of teaching emotions),students and schools,and makes the case design of corresponding cohesive teaching,which provides certain reference for the cohesion teaching of middle school chemistry and electrochemistry knowledge.