The content of PPT is mainly what the paper said, research background, process and conclusion. About 20-30 pages will do. According to the requirements of your school, do ppt according to the reporting time. Generally, you only need to prepare a 3-minute or 5-minute presentation. Write a statement before replying and try it yourself. If the school requires no less than ten minutes, it's best to prepare with both hands, because the teacher usually asks you to speak for three minutes because of time, and ppt is about twenty pages in ten minutes.

Thesis defense:

Graduation thesis defense is an important form of organized, prepared, planned and evaluated papers. In order to do a good job in the defense of graduation thesis, the school, the defense Committee and the respondent should make full preparations before the defense meeting is held. The preparation before the defense, for the school, is mainly to do the organization work before the defense. These organizational tasks mainly include: examining and approving students' qualifications to participate in graduation thesis defense, organizing defense committees, drawing up graduation thesis performance standards, and arranging defense venues.