《机械制图》是工科专业学生必须掌握的一门专业基础课,是后续各门专业课学习的基础,也是当前职业技术学校的师生普遍反应较难的一门课程。课程的难点是培养学生识图、绘图的基本技能,要培养学生由复杂的立体转化为平面图形,再由平面图形转化为立体的空间想象力和立体思维活 Mechanical drawing is a professional basic course that must be mastered by engineering majors. It is the basis of the follow-up specialized courses and a course that teachers and students in current vocational technical schools generally react to. The difficulty of the course is to cultivate students’ understanding and basic skills of drawing. Students should be transformed from complex three-dimensional to two-dimensional graphics and from three-dimensional graphics into three-dimensional spatial imagination and three-dimensional thinking