江苏省科技期刊可视化阅读平台

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江苏科技信息 ›› 2015, Vol. 32 ›› Issue (16): 54-55.doi: 10.3969/j.issn.1004-7530.2015.16.007

• 论文 • 上一篇    下一篇

浅析《机械制图》中直线段投影的教学

吴征   

  1. 江苏省溧水中等专业学校,江苏南京,211200
  • 出版日期:2015-06-05 发布日期:2015-06-05

A Brief Analysis on Straight Line Segments Projection in“Mechanical Drawing”Teaching

Wu Zheng   

  • Online:2015-06-05 Published:2015-06-05

摘要： 文章用长方体作为辅助手段来分析、讲解空间直线段的投影，从三维入手，逐步转化到二维，得出直线段投影规律，便于学生理解。再由二维想象出三维空间结构，从而培养学生的空间思维能力和空间想象能力。

关键词: 长方体

Abstract: Using a cuboid as an auxiliary means,the paper analyzes and explains the projection of spatial line segments to realize the purpose of starting from the three-dimension,gradually changing into two-dimension and then concluding the projection law of straight line segments,which is easier for students to understand.After that,based on two-dimension students can imagine three-dimensional structure.This in turn cultivates students’spatial thinking skills and spatial imaginative abilities.