Practice And Research Of The Ability Of Spatial Imagination For The Numerical Control Major Students Of Secondary Vocational Schools

One of the basic ideas of the new round of vocational education was to combine with the numerical control major and to strengthen vocational solid geometry teaching with specialized relation and to serve for students'learning. In line with this basic idea, according to training objectives of secondary vocational schools, the author reflected the status quo of major three-dimensional geometry teaching for vocational secondary school. The author put forward that the purpose of numerical control major three-dimensional geometry teaching should be to cultivate students' ability of Spatial Imagination and lay the foundation for drawing lessons. The author put forward three-dimensional geometry teaching should manifest the characteristics of vocational education and mathematical subject its own characteristics. The author also put forward the teaching reform strategy of three-dimensional geometry.In the study, the author mainly adopted literature research and case study, collected and sorted out the successful experience of solid geometry teaching. Then the author attempted to improve numerical control major three-dimensional geometry teaching in combination with the author's own teaching practice for providing a positive and useful idea. Research proves, through the visual and teaching model, knowledge chart and drawing training teaching measures could effectively improve the effect of classroom teaching and cultivating students' ability to think the purpose of space.