介绍了视频点播、视频点播的核心技术，视频点播在教学中的应用范围和教学课件设计原则，就教学课件设计原则进行了初步探讨。
Introduction is given to VOD and its key technologies as well as its range of application to teaching. Preliminary discussion is also devoted to the design principles of teaching courseware.
设计实用课件并在实际教学中应用，是每一位教师应具备的基本技能。
Designing the practical courseware and application in actual teaching are the basic skill that every teacher should possess.
多媒体课件设计是影响课件质量和教学效果的关键环节。
The design of multimedia courseware is the key link affecting the courseware quality and teaching results.
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