A Comparative Study Of Triangles In Primary School Mathematics Textbooks Published By People's Education Edition, Jiangsu Education Edition And Shanghai Education Edition

The textbook is a link of national curriculum standard and teaching content,and the triangle content is an important part of primary school mathematics teaching material,in the field of "graphics and geometry",to compare the different versions of primary school mathematics textbooks triangle content,highlight the advantages and disadvantages of the various versions of the content in the triangle,can be formulated as mathematics curriculum standard "content of graphics with the geometry of the field,which can provide reference for the important mathematics teaching material compilation of the triangle content and teachers'classroom teaching.Therefore,selection of Jiangsu,PEP and Shanghai Edition primary school mathematics textbook triangle content as the research object,using literature study and comparison analysis method and content analysis method from the content distribution,style columns,breadth,depth of content,examples and exercises level level dimension,draw the following conclusions:In the three editions,the content distribution is generally balanced,Shanghai Education version of the textbook according to the grade distribution gradually decreased;the three edition core columns remain relatively consistent,Jiangsu at the end of the column setting unit of the teaching material is the most abundant;The contents of the teaching materials of the People's Education Press are the most extensive,and the internal angles and breadths of the triangles in the third edition textbooks are the smallest;Shanghai Education Edition is the most profound content of teaching materials,the three edition of textbook content shows the characteristics of geometric intuition;the three edition of the textbooks are mainly based on the operating examples,and the difficulty of the teaching materials of the Jiangsu edition is the most difficult;The difficulty of the three edition of the textbook is relatively close,main closed questions and open questions are supplemented;the textbook of Jiangsu Education Edition is the most difficult one,and each sub index of the three edition has its own advantages.Finally,based on the comparison and analysis of the triangle content of the three edition,the three edition should maintain the proportion of the content of the triangle,enhance the level of the content,extend the relevant knowledge points of the triangle content,expand the breadth of the content of the teaching materials,appropriately increase the deduction,pay attention to the diversification of the knowledge presentation mode and maintain the operation.The proportion of examples is optimized,and the background setting of examples is optimized,and the relationship between exercises and other disciplines is enhanced,and the difficulty level of exercises is continuously stabilized.