According to Audio-Visual Aids: The instructional devices through which the message can be heard and seen simultaneously are known as Audio-Visual Aids
According to Burton: Audio-Visual aids are those aids which help in completing the triangular process of learning i.e., motivation, classification and stimulation
According to Edgar Dale: Audio-Visual are those devices by the use of which communication of ideas between persons and groups in various teaching and training situations is helped. These are also termed as multi-sensory materials
Good’s Dictionary of Education: Audio-Visual aids are anything by means of which learning process may be encouraged or carried on through the sense of hearing or sense of sight
According to Kinder; S. James: Audio-Visual aids are any device which can be used to make the learning experience more concrete, more realistic and more dynamic
According to Mcknown and Roberts: Audio-Visual aids are supplementary devices by which the teacher; through the utilization of more than one sensory channels is able to clarify, establish and correlate concepts, interpretations and appreciations.
Audio-visual aids are also known as Teaching aids, Educational Communication Technology, Audio—Visual Media, Learning Resources and Instructional or Educational Media.
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