Research On Junior High School Plane Geometry Classroom Teaching Under The Core Quality Of Mathematics

"Mathematics core literacy" is a hot topic in the research of mathematics education and teaching in recent years,and it is also a task that frontline teachers need to pay attention to and implement in their work.Mathematical literacy is a necessary literacy for each of us.It has been used in human social activities from ancient times to the present,such as counting,sorting,assigning,measuring,calculating,etc.Mathematical literacy has been accompanied by social development and progress.."Mathematics literacy" education should be implemented into compulsory education.Therefore,in the context of core literacy,how to cultivate students’ core literacy in mathematics is an extremely important thing.The content of plane geometry in junior high school is in an irreplaceable position in the middle school examination questions.It is one of the hot topics in the entrance examination for junior high school students.It has extremely high requirements for students’ personal visual imagination ability,logical reasoning ability and other core mathematics qualities.The knowledge points of plane geometry at the junior high school stage have relatively high requirements for students’ core literacy in mathematics,and it has always been a difficult point in junior high school mathematics teaching.The author conducts research on the classroom teaching of plane geometry in junior high schools under the core literacy of mathematics.The author conducts research on the classroom teaching of junior high school plane geometry under the core mathematics literacy through literature research,actual classroom observation,issuing and recycling questionnaire surveys,and teacher interviews.The first part of this article is the introduction,introducing the research background,purpose,significance,content and methods.The second part reviews the related literature on "core literacy of mathematics subject" and "plane geometry teaching in junior high school".The third part introduces the theoretical basis related to the research,namely "mathematics core literacy-oriented teaching concept","constructivism teaching theory","multi-representation teaching theory".The fourth part is through questionnaire surveys,teacher interviews and classroom observations,and finds the following problems: students are not very interested in learning the content of plane geometry in junior high schools;they are not good at answering questions in geometric language,The answer writing is not standardized;the geometric proof questions do not know how to start,the foundation is not solid,and the reasoning ability is not strong;the ability to read the questions is not accurate,the examination ability is weak;the drawing ability is weak,the drawing is not standardized,and the auxiliary lines cannot be accurately added;Weak comprehensive application ability;not able to connect with real life well,and not strong in mathematics.Teachers’ interpretation of concepts and theorems is inadequate;teaching tends to be modular and singular.The fifth part is aimed at the problems existing in the teaching of students and teachers,and based on the core literacy of mathematics,the corresponding new lesson and review lesson teaching strategies are proposed: combining real life,creating reasonable and interesting problem scenarios;strengthening concept teaching;focusing on cultivating students’ knowledge of pictures,The transformation between geometry,graphics,and language;cultivate students’ logical reasoning and comprehensive application ability.Pay attention to standard proof test writing teaching;strengthen the teaching of adding auxiliary lines;strengthen the diversified teaching and variants,and the training of one question with multiple solutions.The sixth part adopts teaching strategies for teaching design,respectively designing the new class teaching of "Congruent Triangle" and the review class teaching of "The Judgment of Triangle Congruence".In summary,this research aims to improve the core literacy of students in mathematics,and conducts research on the teaching of plane geometry in junior high schools,so as to improve the effectiveness of teaching.