ABSTRACT
Aids as a traditional teaching tool have some advantages, such as intuitive, strong inspiring. Mechanical principles have the characteristic of mechanism as the main line, more theoretical points, the advantage of aids is particularly prominent. Writing on the blackboard with the feature of coherent, focused on the emphasis, can provide clear knowledge systems, and provide students with a buer of time to think and digest. The multimedia courseware can provide a large amount of information in the pictures, videos and other information to make up the less information of blackboard and the monotony of teaching aids. In the teaching process should combine these three
methods to improve teaching eectiveness, to cultivate the image thinking, design thinking and project awareness.First lines of paragraphs are indented 5 mm (0.2”) except for paragraphs after a heading or a blank line (First paragraph tag).
