Information and Communication Technology

7.2.2. Factors influencing the selection of audio visual aids

Audio-visual aids are used singly or in combination, taking the following factors into consideration.

The teaching objective - the type of behaviour change you want to bring about: gaining information or changing attitudes, or learning some skill.

The nature of subject matter being taught.

The nature of audience - age level, educational level, interest, experience, knowledge of the subject, intelligence, etc.

The size of audience - for instance flash cards can be used for a small audience only; motion picture for larger audience.

Relative cost of the various aids. Effective aids need not necessarily be expensive.

The teacher - (i) the extension worker's familiarity with and skill in using the several aids and (ii) his originality and skill in selection, preparation and use of aids.

The availability - an effective extension worker makes use of indigenous materials, when the teaching aid he would like to use, is not available.