The document discusses VoiceThread, an online tool that allows users to create media albums and have conversations by adding voice comments, text, audio, or video. It provides several examples of how VoiceThread could be used in K-12 classrooms for activities like book reports, discussions, presenting lessons, and assessing students. Key benefits highlighted are supporting student voice, developing visual literacy skills, and extending the classroom. Considerations for using VoiceThread include providing a secure environment, teaching digital dialogue skills, and assessing student work on the site.