Where do I see my students in my Teams class?

Hi, I work at a University and have created a Team for my Course and added my students to it. However, I do not see them anywhere listed under my contacts. Where can I see them listed? this would be helpful for individual or Group Messages.

Also, as I have very many students in my class, I would like to avoid having to add them all one by one to individual Groups from our email database. This is also important, as I would like to create changing Groups during lecture time and dont have time to search for all of them individually by Name.

thanks for help!

Manny