The document discusses web-based instruction methods for teaching. It describes how the web can be used as a source for students to access information and as a way to distribute information beyond just text by taking advantage of different media formats. The role of the teacher is to guide students in using these tools and resources, and to stay up to date with changing technologies. Some benefits of this method include enhancing learning, reducing repetitive tasks, and providing improved materials, while disadvantages can include limited bandwidth and students getting distracted.