A Comparative Study On The Contents Of "Number And Algebra" In Junior Middle School Mathematics

In this paper,the quadratic function as the research content,the Zhejiang education version textbook and PEP textbook for comparative analysis.From the macroscopic and microcosmic point of view,analysis of the two versions of the teaching materials in the system structure,chapter arrangement,knowledge points,important mathematical columns,content presentation,after school exercises on the differences.By comparison,this study has the following conclusions:(a)system structure is divided into chapter structure and section structure.In the chapter structure,the Zhejiang education version textbook have each chapter directory after each name of chapter,and the chapters directory appears after the book guide in the PEP textbook.In the section structure,the section of the Zhejiang education version textbook is guided by the problem,each section has a section head map,the PEP textbook is more simple.(b)In the chapter arrangement,the Zhejiang education version textbook and the PEP textbook are both from easy to difficult.Three pieces of knowledge with "Number and algebra","graphics and geometry","statistics and probability" is cross-presentation.(c)In the knowledge content,the PEP textbook teach more number of knowledge than the Zhejiang education version.In the order of knowledge points,the PEP textbook is more detailed than the introduction of the Zhejiang version,The span of difficulty from front to back pieces of knowledge is relatively small.(d)In the mathematics activity column,the activity column of the Zhejiang education version in the number of the most is examples,class exercises and assignments;the activity column of the PEP textbook in the number of the most is thinking,exploration and practice.(e)For the content representation of the teaching materials,this paper is divided into five aspects including knowledge introduction,example explanation,knowledge induction,consolidation practice and chapter summary.In knowledge introduction,the textbook is introduced from the concept plus the problem,the Zhejiang version textbook is introduced by the practical problem and knowledge.In examples explanation,the Zhejiang education version textbook in the answer process of the example is more standardized and detailed.In the consolidation of practice,two versions of the textbooks both set different levels of exercises for practice.In the chapter summary,the Zhejiang education version of the summary is divided into two parts of "fill in the blank" and "fill in the table".The summary of the PEP textbook is divided into two parts about "knowledge structure diagram of this chapter " and "review and thinking".(f)In the after-school exercises,the exercises number of the Zhejiang education version is more than the PEP textbook.Two versions of the textbook exercises are both hierarchical.In exercises type,the answer questions in the four types of questions accounted for the most.In the cognitive level,the operational memory level exercises are the most,exploratory understanding of the level of exercises are the least in the two version of the textbooks.Comparing the differences between the two versions of the textbooks,puts forward the following suggestions on the compilation of junior high school mathematical teaching materials and practical teaching.On the compilation of teaching materials:(a)The overall style of bright,more interesting.(b)The chapter layout closely,to increase the knowledge of the system.(c)The increase of thinking and exploring,active learners to acquire knowledge.(d)Hold relation to system summary,reflect the important and difficulty point.(f)Increase mathematical activities and reflect the essence role of knowledge.On practice teaching:(a)Using information technology to deepen the understanding.(b)Abstract Quadratic Function in the practical problems.(c)Students mainly,teachers guide.