1. AUDIO- VISUAL AIDS
Projected & Audio Aids
Film Projector
Video tape Recorder
Multimedia Projector
Presented By :
Ms. Gurkirat Kaur
Assistant Professor
CCEW, Chitkara University

2. Film Projector
A movie projector is an opto- mechanical device
for displaying moving pictures by projecting
them on a projection screen

3. Film Projector
16 mm projector was a popular format for audio-visual used in
schools for educational films and as a high-end home
entertainment system before the advent of broadcast television
i.e. from 1940s to 1980s .

4. Film Projector
Films can be used as a teaching aid in almost any
discipline, especially the languages.
And it can be particularly effective in teaching
different kinds of learners.
The film projectors are
replaced after 1980s by
multimedia projectors or
LCD projectors

5. Video tape Recorder
A video tape recorder (VTR) is a tape recorder designed
to record video material, usually on a magnetic tape.
Its one form included the tape within a videocassette,
which was used with video cassette recorders (VCR).
The VCR is simple to operate, portable, and less expensive

6. Video tape Recorder
VCRs became popular in education as it teachers to allow to
pause, rewind, and fast-forward of any recorded shows.
After 2002 magnetic tapes were largely replaced by digital
video tape formats and videocassettes and VCRs popular at
the consumer level, were also replaced by digital media,
such as DVD and later Optical discs.

7. Multimedia Projector
An LCD projector or multimedia projector is a
type of video projector for displaying video,
images or computer data on a screen or other
flat surface.

8. Multimedia Projector
USE IN EDUCATION
TO VIEW EDUCATIONAL FILMS
LCD projectors allow teachers to easily show educational films.
They can show clips of video they have found online or play a
DVD.

9. Multimedia Projector
USE IN EDUCATION
TO SHOW LESSON PRESENTATIONS
Teachers can prepare presentations on a computer and
display them on an LCD projector.
This can be very useful for creating lesson plans that can be
used year after year.
It provides a large, clear image that students can see from
anywhere in the room.

10. Multimedia Projector
USE IN EDUCATION
TO GET STUDENTS INVOLVED WITH INTERACTIVE SLIDES
When an LCD projector is used to display an image on a
whiteboard:
Teacher has the option to use dry erase markers to draw on the
image e.g. demonstrating a chemical reaction or labeling muscle
groups in anatomy class
Students can use markers in different colors to participate as well
e.g. a teacher may display a paragraph on the screen and ask
students to mark errors on the whiteboard