INSTRUCTIONAL TECHNOLOGY 3(2+1)

Lesson 26 : Projected Visual Aids

Summary

1. Any visual aid which is used for magnification of image on a screen in dark or semi dark conditions can be called projected visual aid.
2. An ordinary slide projector has a frame containing two slits into which slides are put for focusing. They are manually and continually replaced by other slides one after another.
3. Slide is a transparent photograph which can be projected onto screen by using slide projector
4. There are two types of slide projectors manual operated projector and automatic slide projector.
5. Film strip is a continuous strip of film consisting of a small number of individual frames or pictures arranged in a sequence.