Projected & non Projected aids
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The document discusses different types of projected and non-projected instructional aids. Projected aids include film projectors, slides, overhead projectors, televisions, and LCD projectors which allow items to be projected onto a screen. They provide realistic experiences and allow movement and sound to be added. Non-projected aids include graphics, display boards, 3D models and objects, and audio recordings which present information without projection and make abstract ideas more concrete. Both types of aids have advantages like making lessons more engaging and supporting different learning styles, but also limitations like equipment needs or small viewing areas.
Projected & non Projected aids
- 2. A projected aid refers one in which item to be observed are projected on a screen using mechanical devices. Projected aids very effective Movement can be added to sound Provide realistic experience
- 3. Projected aid has various types such as Film and film projector Film straps and film step projector Slides and slide projector Epidiascope and episcope Over head projector (OHP) Television LCD projector Computer Mobiles Tablets
- 4. 1.Film and film projector It is big source of knowledge. Images present in a series through motion. Size of images depended on need. Produce real experience Concrete sense develop
- 5. Filmstrips and filmstrip projector A piece of non-inflammable safety film Minimum and maximum 35 mm wide Each strip consist 10 to 50 picture Picture present both color or in black and white Present single idea Record commentary produce a realistic and effective experience
- 6. Over head projector (OHP) It projects the image behind and over the supervisor. A transparent visual present on a horizontal platform Use light Enlarged image produce more effective impression Television
- 7. Projection is considered a central place. Produce interesting learning experiences Aim education/learning rather than entertainment. Considered effective mass communication. Purpose to compensate for the scarcity of qualified teacher and lack of well equipped laboratories.
- 8. Slides and slide projector Develop slides of image Slide projector contain with a powerful light Focused on slides through remote controls Time save Present good impression for the learning experience
- 9. Episcope and epidiascope Episcope use projection of opaque objects F reflected projection through use the pictures, photographs, drawings or any opaque material epidiascope can project opaque as well as transparent objects. A combination of episcope and diascope Improved diascope
- 10. LCD projector Advanced projecting aid Used for present a topic in the classroom Demonstrate the real world Present a theatre-like atmosphere in classroom
- 11. Non- projected Aids Those aids that present without any projection Present abstract ideas Produce realistic situation Instruction provide verbally
- 12. These aids classified (1) graphic aids (2)display boards (3)three dimensional aids (4)audio aids
- 13. Visual aids ( graphs ,diagrams, charts) Represented on plane surface Help to present data systematically A combination of written and pictorial Images Consider short hand language of the idea Attractive for the learners
- 14. Graphic aids has following categories Graphs diagrams posters maps cartoons comics flash cards pictures & photographs charts
- 15. Produce stereotyped atmosphere Display boards help in motivating development and summarizing. Display board categorized according to functions
- 16. These are types of display boards Blackboard Roll –up chalk board Pegboard Hook and loop board Flannel board Magnetic board Plastigraph board Bulletin board Marker board
- 17. These are most common three – dimensional aids considering such as Models Objects Specimen Mock-ups Diorama Puppets Audio Aids Radio Tape Recorder
- 18. Advantages of projected aids Advantages of non-projected aids Easy to create and use Readily accessibility provide realistic experience Less expensive helps on track No equipment required Supports to use multimedia Easy to use very effective Available for all levels of instruction Supports interactivity (easy to go to any slide in the presentation) Available for all disciplines time save Simplification of complex ideas Easy to use more realistic instruction produce a realistic experience provide powerful visual support for learning
- 19. Limitation of projected Limitation of non-projected aids Just words (don't use images) Durability (easily damage) problem to keep Storage. Too much on one slide small group viewing each slide consist Limit e number of words Not suitable use for large group Sometime irrelevant sounds can be distracting Sometime Ambiguity create