Research On The Teaching Of Three Views In Junior Middle School

In order to cultivate students' mathematical literacy,with the help of the intuitive demonstration of algebra and geometry to learn abstract content,and to study the ways and methods to promote the development of students' mathematical core literacy,it is one of the important channels for mathematics teachers to accumulate experience in teaching activities.There are related contents of "three views" in the mathematics teaching contents of primary and secondary schools,which are important carriers to show the geometric structure,shape or characteristics of objects in mathematics teaching.This study is based on mathematics teaching theory,students' cognitive theory and curriculum standards related requirements and objectives,using literature analysis,questionnaires,case studies,teacher interviews and other research methods.The purpose of this paper is to help teachers understand the present situation of teaching research on "three views" and the problems existing in students' learning of three views,and to find out the practical problems in students' observation perspective,projection line,azimuth shape,structure shape,drawing operation,graphic conversion and expression,as well as the disadvantages in practical skill training.This paper studies teachers' "teaching" and students' "learning" from the dimensions of observation and intuitive imagination,different directions and structural shapes,projection and drawing operation,relative position and quantity ratio related to three-view teaching,this paper studies the "teaching" of teachers and the "learning" of students from the point of view of content and method.Through the analysis of the literature about "three views",this paper interprets the teaching contents of "three views" as a carrier to improve students' drawing skills,cultivate mathematical intuition ability and improve thinking quality.as well as the ways and methods that teachers are familiar with mathematical methods and improve their theoretical level.Through investigation and research,the methods to solve the problems are given: combined with the conclusions of literature analysis,investigation and research,and the contents and objectives of three-view teaching,this paper puts forward scientific and reasonable teaching suggestions for students' "learning" in observation,expression,imagination and application and teachers' "teaching" in knowledge,methods,thinking and skills: to discuss and design a three-view teaching and implementation plan.It also reflects and evaluates the process of teaching practice.According to the research conclusion,combined with the classroom case analysis of three views,the corresponding teaching suggestions are put forward: with the help of multimedia courseware making,showing the effect of different perspectives of objects;using physical models,experience the practical practice of drawing the outline of objects;promote cooperative learning and encourage the exchange and display of works.