The Design And Practice Of Chemistry Teaching In Senior High School Based On The Concept Of Green Chemistry

General Secretary Xi Jinping clearly pointed out in the report of the Nineteenth National Congress of the Party that "it is necessary to speed up the reform of the ecological civilization system,promote green development,and build a beautiful China." "General senior high school chemistry curriculum standard(2017 edition)" thoroughly implements the spirit of the 19 th CPC National Congress,requires the application of chemical technology,but also to establish the concept of green water green mountain is Jinshan Yinshan,clear chemistry for modern science and technology,social and economic development and environmental protection.Through the teaching of infiltrating the concept of green chemistry,we should focus on combining students' experience with social practical problems to create teaching situations,guide students to actively pay attention to and participate in social hot issues related to chemistry,cultivate innovative practical ability through diversified inquiry activities,and enhance social responsibility and decision-making ability.Therefore,taking the chemistry curriculum standard and the green chemistry idea as the guidance to design the teaching effectively,the chemistry subject knowledge and the social production life closely unifies,can cultivate the student courage to explore,the positive cooperation spirit,stimulates the student to study the chemistry interest,promotes the student science accomplishment formation.On the basis of the existing research,this paper studies the implementation of green chemistry teaching in the first grade of K G middle school through literature research,investigation,observation and experiment.First of all,after combing the current research situation of green chemistry and green chemistry education at home and abroad,the concept of green chemistry and teaching design is defined,and the theoretical basis of this study is combed.Secondly,the questionnaire is designed from five aspects: students' understanding of green chemistry,the relationship between chemistry and environment,the way of chemical experiment processing,the way ofunderstanding and the behavior in life,and the present situation of green chemistry teaching in the first grade of senior G middle school in K city is investigated.The main problems include the weak awareness of green chemistry,the single way to understand the knowledge of green chemistry,the lack of ability to solve experimental problems by using the concept of green chemistry,and the urgent need to improve the green low carbon behavior habits.Based on the problems existing in the above teaching,according to the chemistry curriculum standard,the concept of green chemistry and the basis of educational theory,the design model of implementing green chemistry teaching in G middle school is designed.Finally,develop specific cases and practice.On the basis of the teaching design of the concept of green chemistry,the first grade students of K city G middle school were selected to carry out the teaching practice.After the practice,the results of the experimental class and the control class,the interviews of students and teachers and the classroom observation scale were used to summarize the teaching practice effect.After a semester of practical research on the use of green chemistry teaching design in the first grade experimental class,the following conclusions are drawn :(1)the teaching design of green chemistry concept can enhance students' attitude and interest in learning;(2)the teaching design of green chemistry concept can improve the quality of chemistry teaching;(3)the teaching design of green chemistry concept can enhance classroom participation and promote students' comprehensive development;(4)the teaching design of green chemistry concept can improve students' green literacy.