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V. NEW TOOLS AND OLD
Chalk and blackboard
Chalk and blackboard continue to be instruments of
enormous value for teaching at all levels everywhere. They
have not yet been replaced. It should be noted however that
several advances from the computer era have been inspired in
such old-fashioned but efficient technology. Computers have
begun to occupy the same "didactic niche" as that taken up
by chalk and blackboard. The low cost, accessibility and
graphic versatility (text and drawing) of the latter are to
be imitated. Progress has certainly been made in the
availability of memory (remember notices on blackboards
covered in formulae reading: "please do not erase"), in the
selective elimination of symbols and strokes (which before
was done by finger or eraser) in the addition of new
information, in the use of color to highlight messages, etc.
But to tell the truth we have still not managed to build an
authentic "digital blackboard".

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