Screencasting allows educators to record their computer screen to create video tutorials, presentations, and other instructional content. It provides several benefits like self-paced learning, just-in-time instruction, reusable content, and the ability to provide feedback or capture explanations. Popular screencasting software includes Jing, Screencast-o-matic, SnagIt, ScreenFlow, and QuickTime. Educators can host their screencasts on sites like Google Drive, Dropbox, YouTube, and their learning management system for students to access anywhere, anytime on mobile devices. The document provides information on different screencasting tools and hosting options for educational use.