Research On The Teaching Design Of Chemistry Experiments In Senior Middle Schools From The Perspective Of The Key Competence Of Chemistry Subjects

In the context of the new curriculum reform,the new "General High School Chemistry Curriculum Standard(2017 Edition)" was promulgated in 2018,which proposed a new concept--the key competence of chemistry subjects.To a certain extent,the key competence of this subject has played a pivotal role in the implementation of the fundamental task of "Lide and Tree of People" education,and it clearly shows the important position of middle school chemistry in the talent training process of national basic education.In the high school chemistry curriculum,chemical experiment is an important part,and it is an effective way to develop students' key competence of chemistry subjects.This research takes high school chemistry textbooks as the carrier,based on related chemistry experiments,and aims to develop students' key competence of chemistry subjects,and achieves the cultivation of students' key competence through middle school chemistry experiment teaching.This paper is divided into five parts: firstly,the relevant background of this research is put forward,the research status is evaluated,the research content is explained,the research purpose is clarified,and the research significance and research methods are introduced.Analyzed the key competence of chemistry subjects and the teaching of chemistry experiment under the background of new curriculum reform.This paper briefly analyze the current research status of the key competence of chemistry subjects at home and abroad.And the research status of improving the key competence of chemistry subjects of middle school students' chemistry subject through chemistry experiment teaching.Secondly,it introduces related concepts and their corresponding educational theoretical foundations.The third part uses questionnaires and interviews to understand the basic situation of high school chemistry experiments,as well as chemistry teachers and high school students to middle school chemistry experiment teaching in the key competence of chemistry subjects training of understanding,attitude,and finally draw a conclusion.The fourth part is based on the prerequisite of cultivating students' key competence of chemistry subjects,based on relevant theories and survey results,three chemical experiments on "Reaction of Sodium and Water","Flame Reaction",and "Iron Hydroxide" Carry out teaching case design and teaching practice.In order to understand their opinions and opinions,interviews were conducted with teachers and students in the experimental class after the teaching practice.The fifth part is the conclusion.The key competence of chemistry subjects is very important to the development of students.It is the quality and ability that high school students need to learn in the process of learning chemistry.Therefore,society,schools,teachers and middle school students should pay attention to the role of chemical experiment teaching in the process of cultivating the key competence of chemistry subjects,and design the best cases of chemistry experiment teaching to cultivate the key competence of chemistry subjects of high school students.I hope this research material can be used for The vast number of middle school chemistry teachers provide certain references.