Watch this short video to learn how to use Mote to record and embed audio into Google Docs. By the way, Mote calls these "hypermotes."
Applications for Education
I can see this being a useful tool for students who are learning a new language to record themselves and then get some feedback from you. For example, you might write a short monologue in Spanish for studnets to read aloud and record. That recording could then be made and inserted into a Google Document that they share with you so that you can listen to their pronunciation.