| The "Compulsory Education Chemistry Curriculum Standard(2011 Edition)"mentioned that "the compulsory education chemistry course aims to improve students'scientific literacy,stimulate students' interest in chemistry,and help students to understand the basic processes and methods of scientific inquiry,and develop scientific excellent ability to acquire the basic chemical knowledge and basic skills for further study and development".Therefore,chemistry course,in the compulsory education stage,has an enlightenment effect for students to learn chemistry.As the consolidation and extension of classroom teaching,chemistry homework has a great role in promoting students to learn chemistry well.After students enter the ninth grade,there will be many problems with their homework,such as poorly handed in homework,students copying homework from each other,and low accuracy of homework.This shows that traditional uniform homework cannot meet the needs of students at different levels.For students with stronger comprehensive abilities,uniform homework cannot meet their learning desires.For middle-level students,the accuracy of uniform homework is also uneven.For students with weak learning ability,they can't finish the unified homework at all,so that they do not hand in their homework or copy their homework and other problems.If you want to change this present situation,you must take a stratified homework method for students of different levels to solve the above problems.Hierarchical homework is to assign homework according to different levels of students.There are three levels of difficult,medium and easy.The purpose is to enable students at different levels to improve their grades well and study ability.In the research process,I first used the literature method,observation method,interview method,questionnaire survey method,mathematical statistics method,case analysis method,and experimental research method to conduct experimental research.Moreover,the research objects are determined in terms of interview method,questionnaire survey method and observation method,and the students in the experimental class are stratified.the corresponding stratified homework is designed according to the academic situation,and applied to the experimental class.However,the uncontrolled class uses traditional homework.Finally,midterm examinations and final examination results are analyzed mathematically.Further,post-experiment questionnaire surveys are implemented again,and the resulting data are analyzed in terms of mathematical statistics to draw experimental conclusions.This paper is divided into six parts:The first part is the introduction,which introduces the current domestic and foreign research status,the purpose and significance of the research,as well as the research ideas and methods,respectively.The second part introduces the core concepts and theoretical basis of this research content;the third part is an investigation of the current situation for the work of the Min-Han united class to determine the stratification of the research objects;the fourth part introduces the design case of the chemistry hierarchical homework in the Min-Han united class;the fifth part studies the specific implement of the hierarchical homework in the Min-Han united class;the sixth part summarizes the full text and reflects on the content of this research.According to the hierarchical homework in the Min-Han united class,it is concluded that:1.The learning ability of students is improved via the application of layered homework;2.The hierarchical homework in the Min-Han united class can boost students'academic performance,motivates students' interest in scientific research,and promotes students to master scientific research methods;3.The application of layered homework can contribute to enact appropriate teaching modes in the Min-Han united class.Therefore,it is imperative that chemical hierarchical homework is investigated and applied in junior high school with the Min-Han united classes. |
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