| Subject teaching is a teacher in the teaching context as the carrier,around a theme,students through exploring experiment,group discussion,report and so on the many kinds of effective teaching activities,at the same time of learning knowledge so that the students in the skills and methods,emotional attitudes and values,both can effectively improve the mode of teaching.Senior three students are facing the college entrance examination,and recitation is the most frequent.How to improve the efficiency of recitation is a problem that every senior chemistry teacher needs to think seriously.The theme review session can effectively improve the review efficiency.This paper takes the "REDOX reaction" as an example,and explores the thematic recitation course through teaching design and implementation.On the basis of referring to relevant literatures and understanding the research status at home and abroad,the theory of constructivism,situational cognition and meaningful learning theory is established as the theoretical basis for the research.Based on this,the teaching process of "REDOX reaction" themed review course was constructed,and the teaching design of three periods was completed.The teaching experiment was carried out.The teaching effect of experimental class was tested by comparison of scores and questionnaires.The results showed that:Through the analysis of pre-test,post-test and retest scores of students,thematic recitation courses can help to improve students’ performance,especially for low-grade students.Through questionnaire survey,thematic recitation courses can improve students’ interest in learning and enthusiasm,as well as the enthusiasm of participating in teaching activities,while enhancing the concentration of time.Themed review can help students to form a knowledge network,increase the degree of knowledge systematic,diversified evaluation methods to make the students confidence in the learning process,helps to form the good self-efficacy,more students are willing to try to through the online consulting,consult the teacher,and classmates communication way of active learning chemistry.Thematic teaching can help students integrate the same kinds of knowledge they have learned at different stages to form a systematic and relatively complete knowledge structure.It can stimulate their interest and thirst for knowledge through teaching situations,and realize that chemistry and human life are closely related to life and society and enhance social responsibility.By summarizing the knowledge,we can deepen the understanding and memory of reaction phenomena and chemical expressions through the exploration of experiments,and teach students the methods of cooperative learning by group discussion and reporting.Account for about one-third of recitation teaching in middle school,improve the efficiency of the recitation will become the first problem,and themed recitation can achieve the purpose of improving efficiency,this article is through the teaching design,implementation and questionnaire survey research methods such as themed recitation.The research process is as follows:First,consult relevant literatures,understand the research status at home and abroad,and establish relevant theories as guiding ideology,such as constructivism theory,situational cognition theory,meaningful learning theory,etc.Second,identify research subjects.The third grade was selected as the research object.The experimental class and the control class were selected through factors such as achievement.Third,implement themed for experimental classes recitation,that in comparative classes according to the instruction from teachers,after the implementation of the teaching design of experimental classes and that in comparative classes test after class,compared to two class grades were analyzed,and the experimental classes questionnaires,from two aspects of learning interest and the way to the analysis of the effect of themed review.The following conclusions are obtained through analysis of the above aspects:1.Thematic recitation sessions can help students improve their grades,especially in the lower grades.2.Study interest and enthusiasm to improve,participate in the teaching activity enthusiasm to improve,focus on the time enhancement.3.Themed review can make part of the original knowledge system form a knowledge network,more actively in the learning process,gradually transformed into "I want to learn",in the process of teaching evaluation ways are more diverse. |