AV materials are both visual and verbal, and are available in various forms and sizes.
They include film and video, which were produced by machines like film projectors, lantern slide projectors, tape recorders, television, and camcorders.
It seems like textbook is going to stay, though it might be presented in different forms to include different media.
Looking into Edgar Dale’s insight provides some hints as to why this is so. Edgar Dale’s Cone of Experience In 1946, Dale’s cone of experience was published his textbook, “Audio Visual Methods in Teaching”. 1) was a tool for media selection, with in a continuum from concrete teaching techniques and instructional materials at the bottom of the cone, to the most abstract techniques at the top. Educational Technology: the Development of a Concept.
One of the reasons is that people came back from the war with first-hand experience of rapid, massive training through the use of motion pictures and other AV media.
Since then, more people were receptive to the idea of learning from AV.(“AECT History.” 2010) It is interesting that AV was viewed as the best, or the only solution to “teaching more” and providing “meaningful learning experience” in limited time because our goals for using educational technology today is still the same. It is also interesting that Wilson pointed out the possibility to express more contents with AV, which is impossible with text alone. Dale clarified that there is no rank or order to the level of efficiency in communicating through media that are concrete or abstract. Writing Space: Computers, Hypertext, and the Remediation of Print. In fact, different media would be appropriate for specific learner and task. He suggests that when we study the history of writing, we should always ask: Even though the Bolter’s argument focuses on electronic writing, I believe the same applies for audiovisual (AV) media. At the time, it provided a revolutionary way for people to communicate – our expression is no longer limited to verbal, but can also be visual (or both at the same time).With its specific affordances, how do AV media make our thoughts visible?Conclusion The discourse of both Finn and Dale, two influential scholars in the AV movement, agree that it is not the medium that controls the efficiency of communication, but appropriate media, or a combination of medium needs to suit particular user and content. Text has different affordances than AV media; effective communication is achieved by different media complementing, but not replacing each other. AV was seen as a media to complement, but not replace text. phonograph and motion picture believe that “motion picture is destined to revolutionize our educational system and that in a few years it will supplant largely, if not entirely, the use of textbooks.” (Thomas Edison, 1922) Until now, motion pictures are often used to supplement teaching, but have not replaced textbooks. Broadcast Media | ” EHow | How To Do Just About Everything!