Advantages and disadvantages of different media, including practical objects, models, blackboard writing, wall maps, film projection, printed conspectus, and multi-media tools, as well as utilization principles were analyzed. Due to the disputation of multi-media utilization in teaching process, we shared our experience in preparing and teaching by using different media in hydraulics course and engineering fluid mechanics course, including multi-media technologies. Detailed processes were introduced, such as decomposition of key point concepts, expression and reconstruction of the knowledge, presentation preparation, the playing pace of presentation, intercommunication with students, collaborative application of blackboard writing and compute presentation, and talking emphasized by body language. As a conclusion, opportunities and challenges brought by multi-media technologies to education were discussed.