A Study Of Teaching Strategies For Chemistry Group Experiment In High School

Chemistry is a experiment-based natural science.Experimental teaching is not only an important part of chemistry teaching,but also one of the effective ways for students to learn chemistry knowledge and cultivate students' consciousness of scientific inquiry.Experiment is an important direction of chemistry curriculum reform.However,due to some constraints,there are many problems and difficulties in experiment teaching at present.Therefore it is of great significance to do researches on chemistry experiments.Group experiment can develop students' practical abilities,train students' abilities to question and the spirit of scientific inquiry,continuously provide innovative talents for the society.The group experiment in the experimental teaching can cultivate students' divergent thinking,provide students with an innovative platform and promote the quality education.By studying the chemistry textbook and relevant literature,this thesis puts forward some teaching strategies according to the current situation of chemical experiment teaching.During the study,this thesis takes the constructivist learning theory and the humanistic learning concept as the theoretical basis.This thesis studies the present situation of the group experiment teaching in Kaifeng City of Henan Province by the questionnaire,and finds most of high schools carry out demonstration experiments but rarely carry out group experiments.Henan University Affiliated Middle School has been carrying out student group experiment,the author focuse on its research,and actively participate in the process of group experiment,analyse the implementation process and the implementation of the results.Through the group experiment,students are more interested in chemistry,experimental ability and scientific inquiry awareness have been improved,doing group experiment is necessary.The implementation of group experiment is a process of continuous improvement,we will meet some problems in the process,especially propose group experiment implementation strategies.The implementation strategies of group experiment include three parts: group experiment preparation stage,group experiment stage and after group experiment stage.Before the group experiment,teachers should group the students rationally and require students to prepare in time.During the grouping experiment,teachers should make the experimental task very clear so that students understand what they should do.Teachers should manage the discipline of the experimental classroom,play the teacher's macro-control ability,strengthen the patrol,promptly correct the student's incorrect operation,lead students to explore the abnormal phenomena and exchange with each other.After the group experiment,teachers should make summaries of the experiment,make evaluations of the student in time,and truly achieve the purpose of the group experiment.Finally this thesis puts forward the conclusions and some suggestions,hoping to give more references to the chemical teachers.