Here is a very helpful video about doing presentations, including best practices for using Powerpoint as well as presentation techniques.
Creating Effective Presentations (materials assembled by Lehigh LIbrary and Technology Services staff members Jarret Brown and Holly Zakos ).
It's a good idea to add the sources you used to the final slide of your presentation Powerpoint. And/or you can add citations at the bottom of individual slides.
See the box (upper right) titled "Finding Images" on this guide.
Also:
Use Google Advanced Search to search your topic. In the search results, click on images and also videos at the top of the search results.
For this class, you can use the guidelines immediately below. Beneath it, under "Resources", is a video and a link to other other considerations.
GENERAL GUIDELINES
You can use media for educational purposes if:
[Thanks to the scholarly communications librarian Carrie Baldwin-SoRelle for above.]
RESOURCES
See this video on youtube about copyright, fair use, and public domain [from commonsense.org/education]
See also the box about using images.on this guide.