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  1. 1

    The overhead projector in the mathematics classroom. по Lenchner, George

    Опубликовано 1974
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    The overhead projector in the mathematics classroom.
  2. 2

    The use of an improvised overhead projector to save on chemicals and time по Tan, Merle (Custodio)

    Опубликовано 1973
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    The use of an improvised overhead projector to save on chemicals and time
  3. 3

    How to use the overhead projector in mathematics education по Krulik, Stephen

    Опубликовано 1966
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    How to use the overhead projector in mathematics education
  4. 4

    The teacher and overhead projection a treasury of ideas, uses and techniques по Schultz, Morton J.

    Опубликовано 1965
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    The teacher and overhead projection a treasury of ideas, uses and techniques

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