| Geometry is a mathematical discipline that studies the relationship between shape,size and position of objects in the real world.People usually use intuitive perception,operation confirmation,speculative argument,measurement calculation and other methods to understand and explore geometric figures and their properties.Implementing the core quality of mathematics is the key to cultivating students'comprehensive quality and realizing teachers' educational and teaching objectives.According to the Mathematics Curriculum Standards for Senior High Schools(Experiments),intuitive imagination literacy mainly includes:recognizing the position relationship,shape change and movement law of things by means of space;describing and analyzing mathematical problems by means of graphics;establishing the relationship between numbers and shapes,and constructing mathematical problems.Visual model,explore the way to solve the problem.Stereo geometry is an important part of mathematics curriculum in senior high school.In senior high school,we often use three views and intuitive graphics to represent spatial geometry.In recent years,the college entrance examination syllabus has also put forward requirements for the knowledge of solid geometry,which are mainly embodied in the requirements of three views.Overview of the college entrance examination in recent years,three views are restored to intuitive graphics,which is one of the key points of the examination.The time of senior three is tight and the task is heavy.How to achieve good review results in a limited time requires the methods of teachers'teaching and students' teaching as well as the teaching strategies adopted.In-depth study.Firstly,the author explains the methods and theoretical basis of this study.Secondly,the author classifies and analyses three views of common spatial geometry.Thirdly,after analyzing the situation of students'learning questionnaires,the author introduces the teaching practice of the experimental class:the implementation of micro-class form+summary.Finally,by comparing the results of the experimental class and the control class,the teaching practice of the control class has a certain effect and effect on the students'three-view restoring intuitive map.I hope this superficial experience and research results will be helpful to everyone. |