Embed Voice Threads for students to share and collaborate.
Students and teachers can collaboratively create and comment on almost anything. When finished you can play back the process. Basically it’s a way to have a non-linear discussion. Comments can be left in text, by voice, or by drawing on the presentation itself.
I’ve seen this tool used very effectively by our Mandarin teacher (@alisonkis on Twitter), for having students submit oral assignments as at home practice. Truly though, this is great for any subject you want students to discuss outside of the class, or in class in a non-linear way.