Just because you are putting your information into a Powerpoint presentation instead of a formal written paper doesn't mean you don't have to cite your sources. All information unless it belongs to you, must be cited.
Source: SIU School Of Medicine Library
Free short and simple tutorials available HERE Examples of training include: formatting assistance, adding images/video/hyperlinks, working with tables and charts, etc.,
ITS provides training programs for you through Atomic Learning. Access Atomic learning here: https://www.atomiclearning.com/highed/