In the modern world one should make use of the fruits of scientific advancement for one’s growth. Education is the field where science has a main support. The present day education needs changes. It should make learner properly informed about him and his surroundings. Knowledge cannot be acquired within the four walls.
A teacher cannot demonstrate everything in the classroom. Moreover, we know the proverb ‘Seeing is believing’. With that point in view teaching is supplemented with the audio visual aids such as, radio, Television, film projector, slide projector, overhead projector, VCR and computer. All these aids have their own limitations.
But if a teacher used it to make his teaching effective, they will be of immense use. Many education programmes are broadcast through radio, for all classes. Television kendras also telecast programmes for children as well as for adults Now we have facilities for recording important programmes. Such recording can be used further to strengthen the memory of the learner.
A society can also be educated in the matters regarding the personal life and social life, and the modern developments in the fields like medicine, agriculture, industry and electronics. The audio visual aids are useful for such services. In general, nothing can replace man power. But these inventions should be used in such a way that both the individual and the nation grow hand in hand.
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