A Study On The Junior Middle School Triangle Teaching Strategy Based On The Core Literacy Of Mathematics

"Mathematics Core Literacy" is a hot issue in recent years in mathematics education research,and also a task to be paid attention to and implemented in front-line teachers' work.Under the guidance of the theory of mathematics core literacy,the principle of dual correspondence between teaching and learning,this paper focuses on the design and analysis of some teaching fragments in the relevant chapters of triangle from the perspective of medium-sized(one unit or one module),and explores the training strategies of junior middle school students' symbolic awareness,reasoning ability,geometric intuition,application awareness and other disciplines.On the basis of literature collection and sorting out,this study designs the questionnaire for sample survey.According to the survey:1.Teachers in experimental schools still have a better understanding of the core qualities related to teaching content and can consciously cultivate them in teaching,but students still have various difficulties in learning.2.Students' classroom participation and subjectivity are not enough.The cultivation of symbol consciousness and reasoning ability should be especially strengthened.3.In teaching,we should strengthen the communication between teachers and students and the use of multimedia.According to the survey,this thesis focuses on the teaching design analysis based on the Judge of Congruence Triangle,Polygon And Its Inner Angle Sum,Isosceles Triangle and Similar Triangles,and at the same time taking tests on students' core literacy before and after the teaching.The conclusions are as follows:1.Teachers play a very important role in the cultivation of students' core literacy.In order to teach mathematics well,teachers should have a deep understanding of mathematics,improve the level of textbook research,pay attention to concept teaching,improve the ideological quality of classroom teaching,structure class questions,and pay attention to the teaching of thinking.2.The cultivation of students' symbolic consciousness should attach importance to concept teaching,basic graphics teaching and variant teaching.3.The cultivation of reasoning ability should run through the whole process of mathematics learning,raise good questions,design natural teaching process,and cultivate the habit of reflective teaching and learning between teachers and students.4.The cultivation of geometric intuition should enable students to practice,infiltrate the combination of numbers and figures,and cultivate students' good drawing learning habits.5.The cultivation of application consciousness should pay attention to the origin and development of knowledge and infiltrate the whole teaching process.