What are the advantages of a good PowerPoint courseware?

First of all, to directly and concisely state what you want to say, this is the most important principle. Methods: the things you want to elaborate in the form of text to hit your ppt on the second, the form of expression should be varied, one can increase the interest of your classroom at the same time so that the people listening to the lessons to remember, and secondly, it can make the people listening to the lessons to be able to image to understand what you have to say. Methods: more pictures, sound, and video animation to explain the text on your ppt, that is, you want to elaborate things.