Instructional Technology/Distance Education/Correspondence courses
The student receives a set of learning materials via mail. The traditional set included textbooks, student guides, and assignments that the student is obliged to do within the specified time. No teacher support is provided. Later this form of learning is combined with the educational radio and TV programs. But in general this form of learning doesn't include any kind of feedback and communication with other participants of the educational process. At those times students and teachers saw each other only within exam sessions.
Traditional correspondence education assumes that learners should work with various educational materials received by the mail. The learner also should send back written assignments and results of his individual research activities.