在讲解机械制图这门课时,采用直观性教学法能很好地帮助学生建立空间概念,培养学生的空间想象能力和思维能力,提高学生的学习兴趣和调动其学习的积极性.所以教师在利用直观性教学法时合理地选择教具,把握好教具的展示时机和使用方法就显得极为重要.一、教具的合理选择首先要针对不同的教学内容、不同的学习阶段来选择教学用具,所选的教具还应具有典型性和代表性.刚开始学习时,应有目的的组 In the course of explaining mechanical drawing, intuitive teaching method can well help students to establish the concept of space, cultivate students ’spatial imagination and thinking ability, improve students’ interest in learning and arouse their enthusiasm for learning.Therefore, teachers use intuitive First of all, a reasonable choice of teaching aids must first be based on different teaching content, different stages of learning to choose teaching aids, the selected teaching aids Should also be typical and representative. Just started learning, should be the purpose of the group