World War II (19 h 56 m, 1 jun 1943 año – 10 h 20 m, 30 jun 1945 año)
Descripción:
With the onset of World War II, the growth of the audiovisual instruction movement in the schools slowed; however, audiovisual devices were used extensively in the military services and in industry (Seattler, 1990).
Añadido al timeline:
Instructional Timeline
Instructional Timeline
fecha:
