You will need to make a decision - where will your students store yearbook photos? Google Photos? Google Drive? Your first concern is probably student privacy. The second concern may be ease-of-use and what you can do with the app.
You don’t have to make the decision in this lesson. In the next few lessons, we will practice sharing and editing photos with both Google Photos and Google Slides. Once you are done, talk to your students, parents, and administrators - what do they want to use?
When you make a decision, stick with that decision for a year. You can always do it differently next year. The one thing that you want to make sure of is that all photos go to one location. Consistency is important.