Distance learning is a formal educational process that breaks the mold of the traditional classroom. There are two key differences between traditional education and distance learning. Distance learning adds flexibility and availability, regardless of time, place, or pace of learning. An instructor teaches, and somewhere a student learns, regardless of barriers of time or place. Distance learning reaches out to non-traditional students who must fit their studies around workplace and family responsibilities, geographical barriers, or personal challenges.
Students can be at satellite campuses, at the workplace, or at home.
Instruction may take place in real time or on a time-delayed basis. Interactivity between student and instructor, as well as among students themselves can be built into the program. Instruction is delivered using a number of technologies, depending on what is most appropriate for the subject and the targeted group of students. Students progress through the course at their own speed, usually in isolation. Audio technologies such as telephone conference calls or radio allow synchronous delivery of instruction to all students.