机械制图是职业技术教育机械专业重要的一门专业技术基础课,它的目标是培养学生空间思维能力、空间想象能力及读图与绘图的能力。职教机械专业学生必须学好制图,如果学生对机械制图知识掌握的不好,将会直接影响其它专业课的学习,甚至影响自己将来走向工作岗位的技术水平。目前,普通高中数学新课程也把机械制图中的“三视图”相关知识列为必修内容,也是高考必考内容之一。可见,机械制图应用的广泛性和重要性。笔者从事机 Mechanical drawing is an important professional and technical basic course in vocational and technical education and mechanical engineering. Its goal is to cultivate students’ ability of thinking in space, spatial imagination and drawing and drawing. Vocational mechanical education students must learn to draw, if students have a bad grasp of knowledge of mechanical drawing, it will directly affect the learning of other specialized courses, and even affect their skills to work in the future. At present, ordinary high school mathematics new curriculum also mechanical drawing in the “three views” related knowledge as compulsory content, but also one of the college entrance exam content. Visible, mechanical drawing extensive and important applications. I work in the machine