copybooks, pencils, artistic materials, files, pages,
graphics, photocopies, cassettes, compact discs (CD’s),
transparencies, slides, texts, bibliographic portfolios, maquetas, direction sheets, images, dictionaries, murals, board,
Uses
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Transparencies, slides and murals at the same way simplify the
meaning.
Cassettes and CD’s make understandable lessons if it treats about pronunciation,
speaking, listening and so on.