Two-way educational closed-circuit television

CLOSED-CIRCUIT TELEVISION has been used increasingly during the last few years as a teaching medium, particularly in cases where it is necessary for a single instructor to reach a large number of students. It has been suggested that closed-circuit television provides at least a partial answer to the problem of increasingly large numbers of students in both college and secondary schools, without corresponding increases in the number of competent teachers. Studies have been made by a number of groups to determine the relative effectiveness of this medium, as compared with conventional teaching methods in which an instructor meets a small group of students in the intimacy of a classroom.