Exploration And Research On Efficient After-school Homework In High School Chemistry Under The Background Of "double Subtraction"

In chemistry teaching,the role of homework is beyond doubt.It can not only help students to consolidate what they have learned,but also enable teachers to master students' learning at any time.However,the attitude of many schools towards homework has deviated from the original track,and too much homework and extracurricular training make many students miserable.In order to solve this problem and create a relaxed and pleasant learning environment,China has introduced the "double reduction" policy,which aims to ensure the quality of teaching while reducing students' workload and promoting students' all-round development.Therefore,this paper launched the "double minus" background after class to explore a new way of efficient chemistry homework.In the research process,the author first used literature analysis method to read and study a large number of domestic and foreign literatures related to homework reform,and sorted out and summarized the previous research results.On this basis,the current situation of high school chemistry homework before and after the "double reduction" was understood by means of a combination of student questionnaire survey and teacher interview,and the challenges of after-school chemistry homework reform under the background of "double reduction" were summarized.Then the new model after the homework reform is studied through the practical example of chemistry homework innovation,so as to reduce the quantity of homework and improve the quality of homework while ensuring the teaching effect.Through the above method,this paper studies combining theory with practice,take the student as this,under the policy of "Shuang Jian" give full consideration to the actual situation of the students,according to different students' learning features and capabilities,design a variety of forms of homework,change the original unified assignment model,give the students more independent choice.On related theory and operation based on the expatiation of the basic design principles,through the way of questionnaire and teacher interview students,to understand our country under the background of "Shuang Jian" the challenge for the reform of the chemistry homework after class,not only the challenges of high school chemistry teachers put forward higher requirements,but also changes the original solidification mode of chemistry homework.After research,the author puts forward a variety of modes of chemistry homework after class under the background of "double minus",and analyzes the effectiveness of these modes through the demonstration of classic cases.According to the research results,after the implementation of the "double reduction" policy,the amount of students' chemistry homework has been significantly reduced,the forms of homework have become more diversified,and attention has been paid to the cultivation of students' practical ability.Oral homework,experimental homework,social investigation homework and other forms have been added,which makes many students interested in completing homework.The completion effect of chemistry homework has been significantly improved compared with before.For high school students,facing the pressure of college entrance examination,it is very necessary to ensure the high efficiency and high quality of homework.Therefore,exploring the "double minus" background is imperative and an important measure in line with the current situation,which can also provide reference for the reform and development of after-class homework of other disciplines.