机械制图是工科类各专业必修的一门主干基础课程，是大学生进入大学后第一学年开设的新类型课程。它不同于数学、物理等公共基础课程所进行的传统的逻辑思维的培养，而是以形象思维和空间想象的训练贯彻始终。教学的中心是解决画图和识图问题，教学的重点和难点是培育学生的空 Mechanical drawing is a basic basic course required for all majors in engineering and is a new type of course offered by university students in their first academic year after entering university. It is different from the traditional logical thinking training in public basic courses such as mathematics and physics, but it is carried out through the training of image thinking and space imagination. Teaching center is to solve the problem of drawing and knowledge map, the teaching of the key and difficult is to nurture students empty