Comparative Study Of "Graphics And Geometry" Exercises Based On The Difficulty Model

After the introduction of the "double reduction" policy,the importance of teaching materials is becoming more and more prominent.Mathematics teaching materials are the carrier for students to carry out a series of learning.Teachers need to analyze the mathematics teaching materials so as to improve the teaching efficiency of the classroom teaching.Therefore,scientific teaching materials are the premise of constructing an efficient classroom.In 2022,the new version of compulsory education mathematics curriculum standards,emphasizing the importance of core literacy in the compulsory education stage,and the knowledge of the "graphics and geometry" part is closely related to students ’life,which is conducive to cultivating students’ "geometric intuition" and "spatial concept".This paper uses the Literature research method,text analysis method and comparative research method,combined with Bao Jiansheng’s difficulty model,to analyze the five difficulty factors of "cognition","background","operation","reasoning" and "knowledge content" to analyze the exercises of "graphics and geometry" in the Beijing Normal University edition and Qingdao edition.By comparing the exercises in the "graphics and geometry" section of Beijing Normal University edition and Qingdao edition,it provides reference for different regions and different versions of the textbooks,so as to learn from each other’s strengths,so as to contribute to the compilation,improvement and development of the textbook.According to the analysis results show that the teaching material exercises set both systematic and comprehensive,Beijing normal university textbooks and Qingdao textbooks on the knowledge,and the cultivation of computing ability,all considering the students in various aspects,but on the inquiry and background,on the subsequent curriculum reform,we can pay more attention to the setting of topic background and the problem of inquiry,combined with the new curriculum standard,put the cultivation of students ’core literacy in the key position,enhance students’ interest in mathematics and hobbies in daily life.