A Comparative Study Of The Exercises In The Textbook "Figures And Geometry" In The Second Section Of Elementary School Mathematics

China's current textbook compilation policy of "one standard and more textbooks",the comparative study of textbooks is conducive to the improvement and perfection of textbooks.Exercise as an important part of the teaching material,its quality is directly related to the quality of the teaching material,it is of great significance for students to consolidate their knowledge and to make up for omissions.The knowledge of "figures and geometry" is close to the reality of students' life,which is conducive to cultivating students' geometric intuition and logical thinking ability.The comparative study on the exercises of "figures and geometry" in different versions of textbooks in China is beneficial to the mutual learning of different versions of textbooks and to the improvement and development of the compilation of textbooks and exercises.This article is based on people's education press(collectively "o 'clock"),Qingdao education publishing house(generally referred to as the "Qingdao")and jiangsu phoenix education publishing house(generally referred to as the "Sue version of")published in grade four,five,six textbooks for primary school mathematics in the graphics and geometric field problem as the research object,from "the quantity,type,material,examine factors,the difficulty level" as well as dimension analysis and compare the elementary school mathematics in the second paragraph of three textbooks "graphics and geometric" problem in the field of commonness and difference,advantages and disadvantages,in order to explore the thinking of geometric design and using mathematics problem and strategy.Among them,the research on "investigation factors" of the exercise is to analyze and compare the investigation factors of the exercise from five aspects such as "mathematical abstraction,logical reasoning,mathematical modeling,mathematical operation and intuitive imagination" in combination with the core accomplishment of mathematics concerned by the current education circle.On the other hand,according to bao jiansheng's "comprehensive difficulty model",the difficulty levels of the five difficulty factors of "exploration,background,reasoning,operation and knowledge content" are assigned respectively,and the difficulty level of the problem is obtained by weighted average.Through the comparison and analysis of the exercises in the field of "graphics and geometry" in the three editions of the fourth,fifth and sixth grade textbooks,the following conclusions are drawn: first,the geometry field of the third edition textbookshas similarities and differences in the aspects of quantity,type,material,difficulty and inspection factors.Second,the third edition of the geometric field problem set has its own characteristics.Thirdly,based on the analysis and research of the statistical results,this paper puts forward the thinking on the design of exercises in primary school mathematics teaching materials :(1)setting a reasonable number of classroom exercises and after-class exercises.(2)appropriate addition of inquiry and objective questions.(3)diversified exercise materials.(4)set the difficulty of the exercise reasonably.(5)permeate the thought of "mathematical modeling".Fourth,through the analysis of the statistical results,put forward about the teachers in the teaching implementation of the primary school mathematics textbook exercise exercise thinking :(1)balance the number of classroom exercises and after-class exercises.(2)adapt the exercises,enrich the types of exercises and keep pace with The Times.(3)to enrich the background materials of the exercises.(4)enhance the awareness of learning from other teaching materials.