Principles and Techniques of Veterinary and AH Extension

EXERCISE-1: AUDIO-VISUAL AIDS

Introduction

• Audio-Visual Aids are instructional devices which are used to communicate messages more effectively through sound and visuals.
• The aids help in stimulating the sensory organs like ears and eyes and facilitate quick comprehension of the message by the audience.
• These may be used for literate as well as for illiterate people.
• The use of audio-visual aids has the following advantages
  • Capture audience attention and arouse their interest
  • Highlight main points of the message clearly
  • The possibility of misinterpreting concepts is reduced
  • Structure the learning process more effectively
  • Messages perceived with several senses are understood and retained better
  • Provide experiences otherwise difficult to get
  • Help reach more people irrespective to their level of literacy and language
  • Speed up the process of learning
  • Can adapt the speed of presentation to the reactions of the audience
  • Save time of teacher and learner
• The instructional devices through which the message can only be heard are known as AUDIO AIDS.
• The instructional devices through which the message can only be seen are known as VISUAL AIDS.
• The instructional devices through which the message can be heard and seen simultaneously are known as AUDIO-VISUAL AIDS.