World War II (19 ore 56 min, 1 giug 1943 anni – 10 ore 20 min, 30 giug 1945 anni)
Descrizione:
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).
Aggiunto al nastro di tempo:
Instructional Timeline
Instructional Timeline
Data:
