A Comparative Study Of Junior High School Mathematics Textbooks Under The Theory Of Variation

With the advance of quality education,sustainable development and variation of textbook diversification theory.Combined with the <compulsory education mathematics curriculum standard(2011 Edition)> of the quadratic equation with one unknown requirements,this paper mainly studies the following problems:(1)how to construct text comparative study of variant material in junior high school mathematics textbook analysis framework,i.e.analysis of writing characteristics of materials text from which dimensions?(2)different versions of textbooks,quadratic equation with one unknown to write what are the characteristics in each dimension analysis framework?(3)proposed teaching materials for teachers to use,selection of textbooks and textbook revision suggestions.Therefore,this paper can enrich the junior middle school mathematics teaching research.This study selected the PEP,Beijing Normal University Press,chineseteacheredition and Zhejiang for junior high school mathematics textbook,from the macro and micro two aspects,through literature analysis,content analysis and other methods of teaching materials in the quadratic equation with one unknown concept and method are studied.The concrete is from the concept of(solution)before the formation of the concept,characterization,concept formation(method),examples,classroom exercises and other dimensions using the quadratic equation with one unknown concept and solution of variation theory analysis.First of all,the four versions of textbooks in the concept of quadratic equation with one unknown are formed by using induction variable type,peph,chineseteacheredition,Zhejiang for teaching in the concept representation have language representation,symbol representation two,and textbooks only a symbolic representation.Secondly,from the point of view of each solution is formed.The version is different,PEP,Beishi textbook using progressive variant form method;chineseteacheredition,Zhejiang materials by using induction method.With the formation of variant form four versions of textbooks in the formula were using progressive change type;Beijing Normal University Edition factor decomposition method formed by induction variable type,while the other three version using progressive variant.Thirdly,through the list ofThan that found from the average level of variant examples,Zhejiang for the highest variant average value is 2.18;the North Division version of the minimum,average value is the average variant variant level 1.67.from classroom exercises,the lowest is chineseteacheredition,the average value was 1.75;the highest version of the north division,the average value of 2.24.at last,according to the research conclusion,put forward some suggestions for teachers to use,and select this part of textbook revision;such as the use of the textbook of PEP before the formation of the students should be given more time to think independently in the quadratic equation with one unknown concept,but also should be given prompt and guide version when thinking in students.In this study,the scope of the study is limited to the concept and solution of the two order equation of the four versions.The scientific nature of the analytical framework needs to be further strengthened.Therefore,the degree of the grasp of the four versions of textbooks is low.