The document discusses distance technologies used for distance learning. It defines distance learning as teaching/learning that occurs when the teacher and students are separated by physical distance for some or all course instruction. It describes different categories of distance education based on time and place (same/different time, same/different place). The document also lists pros and cons of distance technologies, and discusses keys to effective distance education design and delivery. It concludes that distance education can be as effective as other forms of instruction when learning is incorporated and various technologies are used, including print, audio, computer, and video-based methods.