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Teaching Materials (Purpose (Motivates learners, Helps in longer retention…

- - - - Human voice
      - Telephonic conversation
      - Audio discs, tapes
      - Gramophone records
      - Radio broadcast
  - - - drawing, charts, posters, maps, diagrams, graphs, photographs, cartoons and comics
    - - Mock up, Diorama, Globe, relief Map, specimen, puppet, hologram
    - - Slide, Filmstrips, Over head projector, Microfilm, Micro card
  - - - Motion picture film
      - Television
      - Video discs
      - Tape presentations
      - Multimedia computer