One of the sessions that I taught at our end of the year conference was Google Docs, Sheets and Slides for Collaboration. Like many tools, the best way to learn is to use it.
I created a folder in Google Drive and shared it with everyone in my session. The first task in the session was to log in and go to a Google Doc with a Get to Know You Bingo table. Participants were asked to find the cells that applied to them and add their name. I wanted to them to see how multiple users could edit the same document. While they looked it over I explained share settings.
You can see an example here.
Then I asked them all to log into a Google Sheets page and add their name, favorite session attended so far, and one take away from the session.
Finally I asked everyone to contribute to a Google Slides presentation of ideas for using Google with their students. You can see the final slide deck here.
We only had 45 minutes so that was as far as we were able to go. Now I am looking forward to going into more depth with these tools next year. My go to resource for these tools is Alice Keeler's blog, Teacher Tech. If you haven't seen her blog, check it out. You can spend days there!