Roles and Functions of Educational Technology in 21st Century

1. Name: Keerah R. Gracia
Time Schedule: 9:30-10:30 a.m
MTWTHF

3. • Both teachers and the students are convinced about the important
contributions educational technology can offer. If properly selected and used,
instructional materials can do the following:
• 1.) Arouse and sustain the interest and attention of the pupils/students to learn.
• 2.) Concretize abstract concepts/ideas to promote meaningful learning.
• 3.) Makes learning more permanent because of the rich experiences that they
provide.
• 4.) Provide self-activities for independent learning.
• 5.) Increae vocabulary by eliminating verbalism.
• 6.) Develop continuity of thought.
• 7.) Increase the quality of learning while decreasing the time spent.
• 8.) Check pupils preparedness.
• 9.) Make learning more interactive, hence learning is improved.

4. FUNCTIONS OF
EDUCATIONAL
TECHNOLOGY

5. 1. Improvement of Teaching:
Educational Technology analyses the process of
teaching thoroughly. It tries to find out the different
variables of teaching, their interlinks, effects upon
each other, relationships, theories of teaching, phases
of teaching principles of teaching, maxims of teaching
etc. By developing the theories of teaching, it helps in
improving the quality of education.

6. 2. Analysis of the Teaching-Learning Process:
Educational Technology aims at analyzing the
process of teaching-learning thoroughly. It
tries to find out the different variables of
teaching their interlinks effects upon each
other, relationship etc.
It is also concerned with various phases of
teaching. The principles of teaching and the
maxims of teaching are also analyzed by it.
Over all, it tries to establish better and better
relationship between teaching and learning.
3. Improvement of Learning:
Educational Technology analyses the process
of learning and the related theories. It
facilitates more and more of learning in less
time. It takes the help of various empirically
established generalizations from psychology,
sociology, physical sciences, engineering etc.

7. revised with the passage of time. Educational
technology helps in finding out the right objectives.
Everything in this universe is undergoing
tremendous changes and with a very fast speed.
The needs and requirements of the people and
hence education need be revised from moment to
moment. Educational Technology helps in fixing up
the right objectives in the light of the changed
circumstances and changed environment.
5. Training to Teachers:
The changed type of environment with new
curriculum and new materials is to be handled by
the teachers. The teachers equipped with old
strategies and methodologies of teaching will
remain misfits.
Right type of training to the teachers is the need of
the hour. Educational Technology can render its
valuable help in the training of teachers also. The
use of video tapes and close circuit T.V. will help the
teachers to remodel and reshape their teaching
behaviors suitably.

8. technology thereafter comes the question of
developing right type of curriculum. Only a
suitable type of curriculum will help in the
attainment of goals.
Curriculum is the total teaching-learning
environment which has to be modified and
remodeled in the light of latest thoughts. Only
educational technology can do this job of
developing a suitable curriculum
appropriately.
7. Development of Teaching-Learning
Materials:
Teaching- learning materials are also as
important as anything else in the teaching-
learning process. They have to be in
accordance with the environment of the
learners. In this age of science and
technology, the materials of teaching cannot
be unscientific.
Everything of the society including values of
life need be reflected in the materials. Only

9. 8. Teaching-Learning Strategies:
A strategy plays an important role in the
hands of a teacher in every teaching-learning
situation.
The strategy has to be the right one which
should be according to the materials and is
able to bring about effective teaching-
learning. The different strategies are being
evolved by educational technology. The
knowledge of those strategies is a must for
every teacher. Then only the teachers will be
able to do justice to their jobs.
9. Development of Audio-Visual Aids:
Audio-Visual aids have always played an
important role in the teaching-learning
process. They need be used according to the
times. The software aids, the hardware aids,
the computer and other such appliances,
equipment etc., have “to be used in the
present type of teaching-learning
environment.

10. 10. Help in Overall Improvement:
Educational technology helps in locating the
problems in the different areas of education.
It also helps in remedying the draw-backs.
Evaluation of the teaching- learning process is
also made better because through feedback,
things are improved thoroughly and there is
better control over the process of education.
Thus, educational technology can
revolutionize the whole process of teaching-
learning.

11. Educational Technology identifies the needs of
the community. It helps in providing equal
education opportunities to backward people,
disadvantaged students and deprived sections
of the society. It helps education to reach the
remotest corner of the country.
12. Identification of the Needs of Class-Room
Behaviors.
Educational Technology identifies the needs of
class-room behavior. As the mass education
has reduced the standard of education, the
use of educational technology can maintain
and improve the standard by the use of
teaching aids and programmed instruction
material. Educational Technology can inspire
the students in the class-rooms for self-
learning.

12. Technology serve as a
teacher.

13. Technology makes the
world a new place.

15. In Projected
Media, I choose
….

16. SLIDEPROJECTOR

17. A SLIDE PROJECTOR is an opto-mechanical device for
sowing photographic slides.
• 35 mm slide projectors, direct descendants of the
larger-format magic lantern, first came into widespread
use during the 1950s as a form of occasional home
entertainment; family members and friends would
gather to view slide shows, which typically consisted of
slides snapped during vacations and at family events.
Slide projectors were also widely used in educational
and other institutional settings.
• Photographic film slides and projectors have mostly
been replaced by image files on digital storage media
shown on a projection screen by using a video projector
or simply displayed on a large-screen video monitor.

18. COMPONENTS
A projector has four main elements:
• electric incandescent light bulb or other light source (usually fan-
cooled)
• reflector and "condensing" lens to direct the light to the slide
• slide holder
• focusing lens
A flat piece of heat-absorbing glass is often placed in the light path
between the condensing lens and the slide, to avoid damaging the latter.
This glass transmits visible wavelengths but absorbs infrared. Light
passes through the transparent slide and lens, and the resulting image is
enlarged and projected onto a perpendicular flat screen so the audience
can view its reflection. Alternatively, the image may be projected onto a
translucent "rear projection" screen, often used for continuous automatic
display for close viewing. This form of projection also avoids the audience
interrupting the light stream by casting their shadows on the projection or
by bumping into the projector.

19. HOW TO USE
SLIDE
PROJECTOR ?

20. • Gather the slides you are going to use. Most slide projectors have a carousel
that can hold approximately 80 slides. If you have more than 80 slides, you
will have to split them into groups.
• Place each slide into the carousel one by one. Some slide projectors have a
clamping system in which you have to release a clamp before you can load
the slides.
• Press the power button, which is usually red and located somewhere along
the top panel of the projector.
• Focus the first slide. Depending on your slide projector, the focusing will
either be done automatically, or you will have to adjust it using the focus
buttons.
• Move through the slides using the advance and reverse buttons. Pressing the
advance button will make the projector progress to the next slide. Pressing
the reverse button will make the projector backup to the previous slide.
• Press the power button when you are finished. Remove the slides if you are
not going to view them again soon. You should also unplug the slide
projector and store it in a safe place.