Educational technology is the systematic application of knowledge of science and technology to education. It allows for a scientific approach to teaching and learning, helping students focus on various fields of knowledge. Teaching aids are devices or means used to stimulate learner interest and curiosity, helping them focus on the subject. They create a vivid impression to facilitate learning. Some key types of teaching aids include non-projected aids like graphs, projected aids like slides, audio aids like tapes, and audiovisual aids like videos. Guidelines for the effective use of teaching aids include using them to supplement rather than replace experiences, and moving from simple to complex concepts.

2. EDUCATIONAL TECHNOLOGYEDUCATIONAL TECHNOLOGY
 Systematic application of knowledgeSystematic application of knowledge
of science & Technology in the field ofof science & Technology in the field of
educationeducation
 Educational technology allows aEducational technology allows a
scientific approach to Teaching/scientific approach to Teaching/
Learning process in study of variousLearning process in study of various
fields of knowledgefields of knowledge

3. 74%74% SIGHTSIGHT
14%14% HEARINGHEARING
6%6% TOUCHTOUCH
3%3% SMELLSMELL
3%3% TASTETASTE

4. PerceptionPerception
Sight
Hearing
Touch
Smell
Taste

5. Verbal
Symbols
Visual
Symbols
Still Picture
Motion Picture
Television
Exhibits
Field Trips
Demonstratio
n
Dramatized Experience
Contrived Experiences
Direct, purposeful experience
Edgar Dale’s cone of experience

6. 6
YOU REMEMBERYOU REMEMBER
90% of what you read, hear,
Say and do
60% of what you do
50% of what you say
40% of what you see
30% of what you hear
20 % of what you read

9. TEACHING AIDSTEACHING AIDS
 Teaching aids areTeaching aids are devicesdevices or meansor means
employed toemployed to stimulatestimulate the interestthe interest
and curiosity of the learner, helpingand curiosity of the learner, helping
him tohim to focusfocus his attention on thehis attention on the
subjectsubject
 They create a vividThey create a vivid impressionimpression on theon the
mind of the learner and thus facilitatemind of the learner and thus facilitate
teaching/ learningteaching/ learning

10. IMPORTANCE OF TEACHING AIDSIMPORTANCE OF TEACHING AIDS
 They sellThey sell
 They stickThey stick
 They simplifyThey simplify
 They save timeThey save time

11. IMPORTANCE OFIMPORTANCE OF
TEACHING/TRAINING AIDSTEACHING/TRAINING AIDS
 Give variety to classroom teachingGive variety to classroom teaching
 Create an informalCreate an informal atmosphere in theatmosphere in the
classroomclassroom
 Provide opportunity to handle andProvide opportunity to handle and
manipulatemanipulate
 Supply the context for sound andSupply the context for sound and skillfulskillful
generalizationgeneralization

13. ESSENTIAL CHARACTERISTICSESSENTIAL CHARACTERISTICS
 SimpleSimple
 BriefBrief
 Big enoughBig enough
 RealisticRealistic
 InterestingInteresting
 Cost effectiveCost effective

14. LIMITATIONSLIMITATIONS
 No panacea for instructional illsNo panacea for instructional ills
 No aid to instructorNo aid to instructor
 Only a means to an endOnly a means to an end
 Not meant to amuse traineesNot meant to amuse trainees

15. INSTRUCTIONAL AIDS :TYPES
 Non- projected aids
 Projected aids
 Audio aids
 Audio-visual aids
 Activity aids

16. NON-PROJECTED AIDSNON-PROJECTED AIDS
 Graphic aidsGraphic aids
 BoardsBoards
 3D aids3D aids

17. GRAPHIC AIDSGRAPHIC AIDS
 PhotographsPhotographs
 PostersPosters
 ChartsCharts
 DiagramsDiagrams
 GraphsGraphs
 MapsMaps
 CartoonsCartoons
 ComicsComics

18. BOARDSBOARDS
 Black or chalk boardBlack or chalk board
 Bulletin boardBulletin board
 Magnetic boardMagnetic board
 Flannel boardFlannel board
 Window boardWindow board

19. 3-D AIDS3-D AIDS
 ModelsModels
 SpecimenSpecimen
 Mock-upsMock-ups
 DiagramsDiagrams
 PuppetsPuppets

20. PROJECTED AIDSPROJECTED AIDS
 OHPOHP
 35 mm slide projector35 mm slide projector
 Automatic slide projectorAutomatic slide projector
 Video Projection UnitVideo Projection Unit
 VisualiserVisualiser

21. AUDIO AIDSAUDIO AIDS
Radio
Tape recorder
Gramophone

22. AUDIO-VISUAL AIDSAUDIO-VISUAL AIDS
 8/16/36 mm projectors8/16/36 mm projectors
 Close circuit TVClose circuit TV
 Sound synchronized ASPSound synchronized ASP
 Video cassette, VCR, VCDVideo cassette, VCR, VCD
player and video cameraplayer and video camera
 TelevisionTelevision

23. ACTIVITY AIDS
 Field tripsField trips
 DemonstrationDemonstration
 DramatizationDramatization
 DiscussionDiscussion

24. CRITERIA FOR SELECTION OF
TEACHING / TRAINING AIDS
•What - Organize lesson content
•Why - Establish objectives
•Who - Determine trainee group
•Where - Decide location
•How - Plan implementation

25. USE OF TEACHING/ TRAINING
AIDS : GUIDELINES
• Should not to unduly
dominate instruction
• Only to give important
details
• Bold and colourful

26. USE OF TEACHING/ TRAINING
AIDS : GUIDELINES
 Move from part to wholeMove from part to whole
 Only to supplement real-timeOnly to supplement real-time
experience and notexperience and not
substitutesubstitute
 TimingTiming

27. MODERNISATION OFMODERNISATION OF
TRG AIDSTRG AIDS
•DVD/VCD Players
•Magnetic Boards
•TV/CCTV/Plasma TV
•Glass Boards/ Marker Pens
•Smart Boards

28. SOURCE OF TRG AIDSSOURCE OF TRG AIDS
• Procurement from market
• Fabrication at local level
• Available ground
• Store