A Case Study Of Chemistry Experiment Teaching In Junior Middle School Based On Experiment Innovation And Improvement

Chemistry is a subject based on experiment,in which experiment plays an important role in teaching.Through chemistry experiment teaching,students' observation ability,practical ability,creativity scientific attitude and thinking and awareness of environmental protection,safety and economy can be cultivated.With the aid of annual Middle School Chemical Experiment Teaching Innovation Practice Competition Platform of Shizuishan City,this thesis can draw lessons from experiment research of peers,find out the problems existing in the current junior middle school chemical experiment teaching demonstration,and select the relevant junior high school chemistry experiments through combining the published literature to improve the research content,so as to summarize and sort out the basic ideas,methods,principles and techniques of junior high school chemistry experiment improvement.Through improving and innovating parts of experiments in current teaching materials of junior high school chemistry,making a series of scientific experiments and exploration,and improving improvement method gradually,the author finally determines the improvement scheme of several important junior middle school chemistry experiments.The author also excavates the value and function of the improved experiments in the teaching process fully,and designs teaching content that is more in line with the law of students' understanding,so as to achieve the purpose of improving the success rate of experiments,simplifying the experimental operation,making it easier for students to observe,enhancing the efficiency of the classroom experiment teaching,and realizing the development of a higher level of students' understanding.Based on the practice of chemistry experiment teaching in junior high school,this thesis enables teachers and students to tap their potential in the main channel of classroom teaching through new teaching concepts and methods,so as to improve the comprehensive quality of teachers and students.This thesis tries to find out some methods and experiences that can be used for reference in the experimental teaching of 9th grade teachers.In this thesis,there are five parts to expound the content of the research on the improvement of junior middle school chemistry experiment.The first part is introduction,which mainly expounds the research background and significance of the topic,introduces the research objective and research content,and briefly summarizesthe research status and methods of this topic at home and abroad.The second part introduces the theoretical support of this topic,mainly defines two key concepts related to this topic: chemical experiment and experimental improvement,and introduces the main theoretical basis for the current PEP edition chemical experiment.The third part is based on several years of first-line chemistry teaching experience in the district schools,combined with the interviews and understandings of some teachers,the basic situation of chemistry experiment in the 9th grade was reflected and analyzed.The forth part introduces the basic principles of experiment improvement and innovation,improves the chemistry experiment of junior high school,and presents the practical cases of experiment improvement and teaching integration.The fifth part mainly elaborates the summary of this research,the reflection and the prospect improvement of the current PEP edition chemical experiment.