A Practical Study On The Effectiveness Of Mathematics Layered Work In Eighth Grade Under The Background Of "Double Subtraction"

Homework in mathematics is an important component of middle school students’ understanding and understanding of mathematical knowledge,training fundamental skills and innovativeness,and an effective means of testing the effect of student learning and improving teachers’ teaching quality.As the new curriculum reform deepens and progresses,"lighten the load and improve the quality" has emerged as one of the most important goals of education reform.Through the introduction and broad implementation of "Double Subtraction," the author calls for the effective reduction of the homework load for middle school students in their junior year,improving the design of homework assignments,and building high-efficiency classrooms with a focus on improving students’ learning quality and effectively reducing and improving homework assignments.On the basis of this,students are connected with reality,the level of assignment design is clear,both to promote the "Double Subtraction" policy to land smoothly,more fully display humanization,development and individualization,and to truly develop the value of assignment to improve the comprehensive quality of students.This thesis is a practical study on the validity of eighth-grade mathematical stratification.First of all,through the search of relevant literature,to understand the results of stratification work at home and abroad.Secondly,to some students to carry out questionnaires and interviews,in order to understand the current status of eighth graders in mathematics homework,in particular,the current situation of stratified homework was studied.Then,taking the teaching contents of triangle,integral triangle,integral multiplication and factorization as examples,the layered homework case was designed in detail,and the author’s eighth grade(5)class was taken as the experimental class,and the practice of layered homework was carried out for about three months.Finally,two students from three grades were randomly selected to take part in the questionnaire survey,and with the aid of test data,students in the experimental classroom were compared and analyzed before and after stratified task practice,with the aim of investigating whether stratified assignment practice has a positive effect on students’ attitude towards learning mathematics and their academic performance.Through this research,students expect the diversity of assignment forms,affirm the effectiveness of layered assignment,and think that layered assignment can effectively test and consolidate classroom teaching.The practice of layered assignments improved student performance.Through instructional controlled experiments and data comparison,13 students in the experimental class made upward grade jumps,with three in A → B,nine in B → C and one in A → C.Through the practice of layered work,it is found that students’ learning ability is obviously improved,layered work reduces the amount of work,integrates and optimizes the knowledge assessment points,assists students to consolidate,causes students’ learning enthusiasm to improve,and develops their independent learning ability.All in all,the practice of layered work under the background of "Double Subtraction" is effective and has some reference value.