Principles and Techniques of Veterinary and AH Extension

CHOICE OF AUDIO-VISUAL AIDS

• Audio-visual aids are used singly or in combination with other aids and extension methods.
• The extension agent should be well conversant about the audio-visual aids and acquire sufficient skill in handling them, before using them in extension programmes.

The choice of audio-visual aids shall depend on a number of criteria.

1. Teaching objectives-whether to give information, to impart skill or to bring change in attitude etc
2. Nature of subject matter being taught-particular aspect of the technology and whether understanding depends on seeing or not
3. Nature of audience-their age, education, interest, experience, knowledge, intelligence etc
4. Size of audience-small or large
5. Availability of equipments, materials and funds
6. Skill and experience of the extension agent in preparation and use of audio-visual aids