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Still Image - Coggle Diagram

- - - - Such as the rather expensive, heavy and bulky device, which due to its low luminosity (since it projects a previously reflected image) requires a noticeable darkening of the room, and which is therefore rarely used.
    - - It allows to project, without any previous preparation, original documents, graphics or selected diagrams of books, magazines, newspapers
      - It also allows you to draw figures or maps on paper by reviewing the maps with a pencil
        originals projected on him with the opacope.
      - It shares the advantages of the overhead projector, although due to its low light output it requires darkening of the room where it is used, which makes communication with students and the possibility of taking notes difficult.