The document discusses the evolution of distance learning from 1950s to present day. It begins with early concepts of "push-button schools" using room-sized computers. By the 1970s-80s, smaller computers began revolutionizing education through programming languages like BASIC. Today, ubiquitous technology allows learning anywhere through platforms like YouTube, MOOCs, and virtual classrooms. The Teaching Online program at UC San Diego Extension prepares candidates to design, deliver, and evaluate curriculum for blended, hybrid, or online environments. The six course program covers topics such as online learning foundations, instructional design, technology tools, and a teaching practicum.