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#1 Income Generating Computer Business In 2003
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teaching machine
any mechanical device used for presenting a program of
instructional material.
There are many types of teaching machines. In general, they
all work on the same method, which is to present a question,
have the user indicate the answer, and then provide the user
with the correct answer. Some machines may be extremely simple,
such as test sheets or books so programmed that the student
locates the answers to the questions later. For instance, a book
may pose a series of questions, provide spaces for the answers,
and then give the correct answers on a different page. Another
device may use a plastic cover to hide all but the question and
the space for an answer; when the question is answered, the
cover is pulled down to reveal the correct answer and the next
question. One type uses chemically treated paper so that if the
correct answer to a question is marked, the paper turns colour.
A more complicated machine presents multiple-choice questions in
a window, with various keys to press to indicate the correct
answer. The following question appears only if the correct
answer was chosen. Computers and the recording equipment used in
foreign language laboratories are examples of teaching machines.
All teaching machines depend on a program, that is, a series
of questions presented that provide a student with a certain
amount of challenge as well as a chance to learn. There
are many advantages to the use of teaching machines. They are
particularly useful in subjects that require drill, such as
arithmetic or a foreign language. Users can proceed at their own
pace and also have an opportunity to review their work. If the
machines are used in a classroom, they relieve teachers of some
of the time-consuming aspects of drilling students, allowing
them to give more attention to individuals with specific
problems or to concentrate on some particularly difficult area
of instruction.
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