INSTRUCTIONAL TECHNOLOGY 3(2+1)

Lesson 24 : Visual Aids - Charts

Definitions of other Visual aids

Diagram: It is able to illustrate a process or an object.

Graph: It is for getting precise idea or drawing a comparison or conclusion from numerals or statistical data.

Photographs:

These are the exact visual recordings of things. They may be mounted or unmounted photographic prints or reproductions of photographs taken from a magazine, newspaper or book. They may be in black and white or coloured. They may be used in personal teaching situations or as display type visuals in exhibitions or bulletin boards. They may be projected with an opaque projector. To be effective teaching aid a photograph must:

1. Tell a story
2. Illustrate only one point
3. Have plain and simple back-ground
4. Show the main subject prominently

Illustrations: these are non-photographic reconstructions of reality

Eg: Drawings, paintings.

Map: It is an informative diagram of an area