The document discusses podcasts and their use in education. It defines a podcast as a digital audio recording that instructors can use to deliver content to students asynchronously. Podcasts can be distributed online through websites or directories. The term "podcast" comes from "broadcasting" and the iPod. Podcasts allow for educational content to be accessed anywhere via devices like computers, phones and tablets. The document outlines benefits of using podcasts in the classroom like bridging traditional and modern teaching methods and allowing students more active learning.