High School Chemistry Experiment Improvement Research And Practice Based On Green Concept

Based on the study of " National Chemistry Curriculum Standards for Senior High School(2017 Edition)",this study establishes the foothold of senior high school chemistry education and the overall educational function of chemistry curriculum,and further combs the development process of green chemistry at home and abroad,especially at the foundation of middle school,with the construction of comprehensive development of students' chemical discipline core literacy and the practice of "learning by doing" teaching concept as the central idea.The current research situation of the educational stage puts forward that the educational concept of "people-oriented,student-oriented" should be interpreted,the experimental improvement based on the green concept should be carried out,and the overall requirement of "active participation" of students in the experiment should be promoted.Firstly,through the statistical analysis of teachers and students' questionnaires,textbook experiment settings,college entrance examination questions over the years,and related research in recent years,it is concluded that: 1.The cultivation of green concept should be implemented as early as possible at the stage of basic education in secondary schools.2.The improvement of high school chemistry experiment based on green concept should not stay on ideology,but should transform ideology into action.3.The most effective way of translating it into action is to take students as the main body in the stage of basic education in middle schools,to complete the improvement of the green experiment in person,and to cultivate the green concept from the action.Secondly,according to the 12 principles of green chemistry,and the "5R" principle of chemical use and the actual situation of teaching in different schools,the paper puts forward that the implementation of green chemistry experiment improvement in senior high schools should follow the principles of safety,intensification,feasibility,normalization and practical life,and elaborates the methods of improving experiments according to the proposed principles.Following the principles and methods,we innovatively designed and utilized the self-made instruments using recycled mineral water bottles to carry out experimental improvement practices such as the properties of chlorine gas and ammonia gas.Finally,feedback through the forms of test paper and interviews between teachers and students shows that this kind of green improvement form is welcomed by teachers and students as well as has a good educational and teaching effect,so it achieved the purpose of this study.