communications between learners and instructors in distance
education must be provided by technologies. There is a wide
variety available. They include broadcast radio and television;
audio- and videotapes; interactive audio and video teleconferencing;
various computer and Internet technologies, and print technologies.
Different devices may be used for courseware delivery and
for interpersonal interaction, but the backbone technologies
along which the signals travel are often the same. The Technology
domain provides information about the varieties of each
of these technologies, and describes their different strengths
and weaknesses as vehicles for education.
features to be considered are the relative merits of recorded
technologies for delivering presentations of subject matter
and the merits of teleconferencing technologies for facilitating
interaction between teachers and learners. Administrators
and teachers have to consider the benefits of relatively
high cost technologies such as broadcast television and
interactive video compared with the lower costs of text,
audio recording and telephone conferencing.
of technologies will always produce better results than
any single technology. Getting the optimum mixture though
requires great skill and knowledge. Ultimately it depends
more on the quality of course design and the quality of
instruction than on technology itself.
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and Recorded Broadcast
and Computer-Based Interactive