Research On Creative Design Strategy Of Chemistry Teachers In Middle School

Experiments are not only an important source of chemistry discipline theory,but also an important driving force for the development of chemical practice.In the context of the new curriculum reform,the middle school chemistry experiment,as a vivid and intuitive teaching method,plays an important role in stimulating students' interest in learning and cultivating students' divergent thinking and creative ability.Looking up the relevant literature and combining with the visits of some middle schools,it is found that there are still many problems in the real practice of middle school chemistry experiments.In the context of teaching in the new era,experiments play an increasingly prominent role in chemistry teaching.Teachers must adapt to the development trend of the new era,implement the teaching concepts of the new curriculum reform,combine the actual conditions of the students and the existing experimental resources of the school.Students develop a reasonable chemical experiment program,select appropriate teaching content and teaching methods,cultivate students' innovative thinking,and effectively improve students' learning efficiency.This article analyzes the teacher's innovation strategy from the case.It aims to provide concrete ways to improve the creative thinking level of students and teachers from the aspect of the experimental design strategy,so that the students can obtain both the theory and the ability from the chemistry experiment teaching.1.Retrieving and arranging the experimental cases mainly published in "Chemical Education","Chemistry Teaching",and "Reference to Chemistry Teaching in Middle Schools",and statistically analyzing these cases.From the perspective of the region studied,the case study of chemical innovation in Class A cities is four times that of a Class B city.From the perspective of the research personnel,the research staff is mainly secondary schools,college teachers and research institutes;among them,81.4% are experimental innovations published by middle school and college teachers.From the content of the study,we mainly focus on experimental innovation design in the textbooks for junior high schools.2.Re-analyze selected cases.From the perspective of innovation,six strategies for experimental innovation were used to analyze the case in detail,so as to clarify the objectives of each innovative case study,the content of experimental improvement,the ideas and strategies for experimental innovation design,and the innovative experiments.Successful experience is summarized.The six strategies are enumeration analysis strategy,tentative search strategy,highlighting the main problem strategy,goal analysis strategy,target backstepping strategy,hope point enumeration strategy.3.Select three representative experiments with improved innovation value,combine six experimental design strategies,present innovative design ideas,and successfully design experiment design for sodium and water reaction,experiments with copper and concentrated and dilute nitric acid reactions.Innovative designs,three examples of innovations ranging from color changing fountains to colorful fountains.