I. Visual (Verbal) Print or Duplicated
(a) Textbook, Supplementary Book
(b) Reference books, Encyclopedia, etc.
(c) Magazine, Newspaper, etc.
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(d) Documents and Clippings
(e) Duplicated Written Material
(0 Programmed Learning Material and Self-instructional Modules
(g) Case Studies (Simulating Reality) and Case Report
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II. Visual (Pictorial) Non-projected Two-dimensional
(a) Blackboard Writing and Drawing
(b) Charts
(c) Posters
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(d) Maps
(e) Diagrams
(f) Graphs
(g) Photographs
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(h) Cartoons
(i) Comic Strips
III. Audio
(a) Human voice
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(b) Gramophone records
(c) Audio tapes/discs
(d) Stereo records
(e) Radio broadcast
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(f) Telephonic conversation
IV. Visual Non-projected Three-dimensional
(a) Model
(b) Mock-up
(c) Diorama
(d) Globe
(e) Relief Map
(f) Specimen
(g) Puppet
(h) Hologram
V. Visual Projected (Still)
(a) Slide
(b) Filmstrip
(c) Transparency (OHP)
(d) Microfilm, Microcard
(e) Computer
VI. Audio-visual Projected (With Motion):
(a) Motion Picture Film
(b) Television
(c) Close-circuit Television
(d) Video Cassettes/Disc
(e) Multimedia Computer
(f)Slide-Tape Presentation