When the audio-visual aids should be used?

Options

A. When object to be shown is too big to bring in the class
B. When object to be shown is too small which can be seen
C. When teacher has to talk about things, place or person situated at far off places
D. All of the above

Answer

D

Explanation

Audio-visual aids is used to visualise something that cannot be done practically by the class. The reason may be is size or location etc, AV aids helps in understanding such related concepts.