三维CAD软件辅助工程图学教学的探索与实践

Study and practice on 3D CAD software assisted teaching for Engineering Graphics

从点线面的相对位置、截切和相贯、组合体、剖视图、规定画法和简化画法、尺寸标注、部件的工作原理和装配等七个方面探讨了三维CAD软件辅助教学的方法和应用。实践证明,在工程图学的教学中,恰当合理地使用三维CAD软件作为多媒体教学课件和传统教学手段的补充,可以有效地提高学生对模型的认知能力,有利于营造研究型教学情景,结合启发式、提问式、讨论式等教学方法,使学生参与到教学中,从而激发学生学习的主动性和积极性,实现师生互动。

This thesis discusses 3D CAD software assisted teaching methods and applications from seven aspects：point-line surface＇s relative position,section and intersection,combination solid,cutaway view,regular drawing and simplified drawing,dimension,and parts＇working principle and assembly. Practice has proved that in engineering graphics teaching,using 3D CAD software as the supplement to multimedia teaching coursewares and traditional teaching methods appropriately and reasonably can effectively improve students＇ cognitive ability of model and easily help to create research-based teaching scenarios. Combination of heuristic,question type,discussion type teachingmethods andso onenable students toparticipate inteaching,therebystimulating the initiative and enthusiasm of students study and achieving teacher-student interaction.