识图、绘图是机械、机电类专业技术人员必备的职业技能,因此《机械制图》是机械、机电类专业课程中的一门重要的专业基础课。我认为在《机械制图》的教学中,点、线、面的投影知识学习与掌握是关键,而这些内容的掌握和熟练运用恰恰是学生的薄弱环节。要学好《机械制图》,笔者认为必须从以下几个方面入手: Knowledge map, drawing is a mechanical, electrical and mechanical professional and technical personnel necessary vocational skills, so “mechanical drawing” is a mechanical, electrical and mechanical courses in an important professional basic course. I think in the teaching of mechanical drawing, point, line, surface projection knowledge learning and mastery is the key, and the mastery and proficiency of these contents is precisely the students’ weak links. To learn “mechanical drawing”, I think we must start from the following aspects: