SEMINAR
TOPIC : CLASSIFICATION OF AUDIO VISUAL AIDS
INTRODUCTION
Audio Visual Aids are also called instructional material. Audio literally means “hearing” and “visual” means that which is found by seeing. So all such aids, which endeavor to make the knowledge clear to us through our sense are called “Audio Visual Aids” or Instructional Material. All these learning material make the learning situations as real as possible and give us firsthand knowledge through the organs of hearing and seeing. Therefore, any device which can be used to make the learning experience more concrete and effective, more realistic and dynamic can be considered audio visual material.
Audio visual material must be seen in their relationship to teaching as a whole and to the learning process as a whole, until the teacher understands the relationship between audio visual material and teaching learning process.
Audio visual materials are produced, distributed and used as planned components of educational programs. It helps the process of learning that is motivation, classification and stimulation. A.v. aids are multisensory materials which motivate and stimulate the individual. It makes dynamic learning experience more concrete realistic and clarity. It provides significant gains in thinking and reasoning.
Audio visual aids are sensitive tools used in teaching and as avenues for learning. These are planned educational materials that appeal to the senses of the people and quicken learning facilities for clear understanding.
.AUDIO VISUAL AIDS ARE CLASSIFIED INTO MAINLY THREE. THEY ARE,
1. PROJECTED AID
2. NON PROJECTED AIDS
3. ELECTRONIC AIDS
1. PROJECTED AID
PROJECTED A.V. AIDS:
OVER HEAD PROJECTOR:
The over head projector is the most used in all a.v. aids. It projects transparencies with brilliant screen images suitable for use in a lighted room. The teacher can write or draw diagrams on the transparency while he teaches; these are projected simultaneously on the screen by the OHP.
projector is the only projector on which you can project a variety of materials ex: - book pages, objects, coins, postcards, or any other similar flat material that is non-transparent.
The opaque projector will project and simultaneously enlarge, directly from the originals, printed matter, all kinds of written or pictorial matter in any sequence derived by the teacher. It requires a dark room, as projector is large and not reality movables.
2. NON PROJECTED AIDS
NON PROJECTED A.V. AIDS:
GRAPHIC AIDS:
It is a combination of graphic and pictorial material designed for the orderly and logical visualizing of relationships between key facts and ideas ex: comparisons, relative amounts developments, processes, classification or organization. It includes the following
CHARTS
Introduction:
These visual symbols used for summarizing, comparing, contrasting or performing other services in explaining subject matter. A chart is a combination of pictorial, graphic, numerical or vertical material, which presents a clear summary.
Definition:
Chart is defined as a visual aid which depicts pictorial and written key information in systematic way to summarize, compare, ex: anatomical charts and figure, diagrams etc.
Purposes:
Ø To visualize an item, it is otherwise difficult to explain only in words.
Ø To highlight important points.
Ø To provide outline for materials covered in presentation.
Ø To show continuity in process.
Ø For creating problems and stimulating thinking.
Ø For showing development of structure.
