VoiceThread is an interactive media platform that allows users to comment on slides using voice, video, text or drawings. It can be accessed from any technology with a microphone, phone, webcam or text capabilities. VoiceThreads are easy to create by uploading media like photos or videos, adding comments, and setting privacy settings. They provide a collaborative learning environment where students can freely express themselves and actively participate in discussion. Teachers can use VoiceThreads to boost participation and engagement through modeling appropriate comments and monitoring interactions.