Study On The Cultivation Approach Of High School Students’ Three-dimensional Space Imagination

The ability of spatial imagination is one of the important parts of the core literacy of intuitive imagination.As far as the current situation of the cultivation of high school students’ mathematical ability is concerned,it is common to neglect students’ spatial imagination ability.Therefore,it is urgent to seek effective ways to cultivate students’ spatial imagination ability.In high school,the spatial imagination is mainly in three-dimensional form,so the spatial imagination described in this paper is all three-dimensional.This paper mainly adopts the methods of literature analysis,interview and measurement survey.First of all,through the search for relevant literature and interviews,this paper analyzes the influencing factors of spatial imagination ability from two parts of theory and reality.Secondly,in order to ensure that the research process is not separated from the audience and that the research conclusions are feasible,this paper also uses the method of survey to analyze the current situation of high school students’ three-dimensional space imagination ability.Finally,on the basis of the survey results,the paper puts forward some suggestions on the cultivation of students’ spatial imagination,which are divided into the following aspects:Firstly,from the perspective of students’ psychological education and interesting teaching to deepen students’ cognition of space imagination,to provide a strong guarantee for students to have better space ability.It includes constructing teaching situation scientifically,popularizing the history of geometry development and penetrating perspective projection.Secondly,optimize the core content teaching strategies closely related to spatial imagination.It mainly involves two parts:· Increasing the proportion of three views in the teaching of solid geometry,the three views test the students’ overall grasp of spatial graphics,and require students to have a certain spatial imagination ability.Therefore,in order to improve students’ ability of three-dimensional space imagination,we should pay attention to the teaching of three views.· Combining the contents of projective geometry and oblique two mapping method,the students can understand the three-dimensional space more deeply,understand the presentation form of three-dimensional space in two-dimensional plane,and provide a better prerequisite for improving the ability of spatial imagination.Thirdly,introduce the computer dynamic model Cabri 3D into the teaching to show several applications in solid geometry.Computer tools can not only display space geometry intuitively and vividly,but also easily present the dynamic change process of some complex graphics.To a great extent,it improves the weakness of the traditional teaching of space geometry transformation,which is not intuitive and dynamic.