Andrews
and Bowser (1995) have pointed out the tendency many teachers have to imitate
existing familiar teaching situations and strategies when delivering instruction
via new technologies, and the problems this approach causes in the successful
adoption of the new technologies. Besides raising the need for staff development
in the use of new teaching media, they point out that two of the 'missing'
components in conventional distance education are student/instructor interaction
and class collaboration. Retaining the immediacy of these learning interactions
will not be accidental. New communication technologies now allow us provide
much more of these than in conventional distance education, but the design
task is not trivial even for single-user interactive media. (Sims
(1995) [HREF 3]). Learning from a well-made Open Learning package may be
like having a good human coach or tutor, but the skills involved in preparing
that package are quite different from those required to deliver a useful
lecture.
Beyond these issues, however, many operational difficulties arise in our
use of such educational communication technologies, as we have experienced
in the adoption of earlier technologies in face-to-face teaching. The use
of video-projection from a computer to replace the use of static overheads
does not dispose of the need to prepare a certain amount of static overhead
material as a backstop in case the video-projection system fails. For differing
reasons, this doubled preparation will be repeated as we introduce more
flexible methods into our teaching. Both the face-to-face or audio-taped
lecture and the Web page need to be prepared if we are to provide increased
flexibility rather than merely a substitution of delivery media.
While in an Ideal University there would be sufficient support staff to
relieve the lecturer of the technological aspects of this task, experience
suggests that the present dearth of such support staff will continue, a
lack both in absolute numbers and specifically of those who are sensitive
to and have some allegiance to the needs of teaching as opposed to the needs
of machines. I expect that teaching staff will have to bear at least part
of the preparation burden, just as many now prepare their own teaching aids
such as overheads. The temptation for many will be the direct conversion
of existing material for electronic presentation. This will create a (small?)
market for conversion software, able to ease the task for relatively
non-technical
teaching staff, as programs such as Powerpoint have done over the last few
years. In the short term many electronic lectures will be created, driven
by the pressures of time and lack of support and justified as being at least
partial steps along the way to providing more flexible learning conditions.
| # | Communication | Typical tools |
|---|---|---|
| 1 | free-form text messages between lecturer and individual students and vice-versa | email software, Eudora |
| 2 | messages from lecturer to entire class | mailing list software |
| 3 | delivery of learning materials and assignments to student when, where and as they need them | Telnet, Fetch or Gopher session, or a Web page with links to download files to the student's own machine |
| 4 | response by student to short structured questions to allow lecturers and students to assess learning achieved | forms-based Web pages backed with CGI scripting to extract results |
| 5 | text-based commentary between students about the learning resources | IRC Chat session or computer conference |
| 6 | transfer of image files between students for discussion, together with manipulation of such images visible to many students concurrently | whiteboard facility included in many forms of desktop video conferencing |
| 7 | submission of assignments by students electronically, together with return of assignments to students by the lecturer | email with attached documents |
| 8 | synchronous audio communication between a student or students and the lecturer | audio-conference equipment, party-line call or Internet Phone |
| 9 | asynchronous audio communication between relevant parties | answering machine or audio download from a Web page |
| 10 | face-to-face visual communication between a student or students and the lecturer | video-conference, desktop video-conference or CUSeeMe call |
Current affordable network tools supporting remote learners allow email, file transfer, computer conferencing and Web browsing, but these various tools demand a serious learning effort from their users, not only from the students as learners but also from their lecturers as administrators. This extra learning effort adds an additional barrier between learner and teacher, between learner and learning. The use of a computer in the message-passing stream can be considered an impediment to learning for many students.
In addition, the lead-time and response-time in student-teacher interactions are lengthened. With paper and chalkboard, these times are quite small. Involving a bureaucracy in assignment reception and registration can add weeks to the interaction process. Using electronic communications that require reprocessing and involve an educational technician may also slow the process enormously unless the lecturer takes action to minimise delays, preferably by retaining as much control as possible. Just as the growth of desktop publishing has benefited semi-professional authors by passing control over the appearance of a work from the printer back to the author and reducing the overall production time, Web publishing and course management tools need to be put into the hands of teachers to retain as much immediacy as possible in student-teacher interactions.
By making the process easier, the new tools leave more mental energy available for creativity and communication. Consequently both creation and communication are more likely to occur.
A variety of such learning management tools are being introduced (Harasim (1995) [HREF 4]) as many Universities around the world reinvent their particular wheel (and we are not immune to that disease). Products such as PacerForum and Lotus Notes, while integrating many of the various communications described above, are restricted to use on a local area network or to organisations large enough to afford dedicated technical support for the groupwork system. Newer teaching and communication tools are frequently based on the use of the Web as this offers a pleasant and consistent graphical user interface and avoids many of the problems arising from the wide variety of computers that our students use.
WEST (Web Educational Support Tools [HREF
5]) is a system developed at University College Dublin which makes it
easier to manage the creation and delivery of learning materials over the
Web. The ease with which this system can be set up and maintained puts it
well within the technical ability of the majority of university computer
users. Once the server is running, all lecturer tasks can in fact be
carried out from any computer on the network. If the current interest in
using the Web to increase the flexibility
of course offerings is maintained, personal Web servers backed by management
systems like WEST could proliferate on lecturers' desktops, just as
presentation software has become a standard part of the lecturer's
toolkit. Just as HTML and its associated tools offer "multimedia for
the rest of us", desktop educational support tools may add real value
to the "ubiquitous
servers" in educational institutions.
The diagram below briefly summarises the communications capabilities of
the WEST system and shows how it integrates facilities equivalent to the
communication types listed as items 1, 2, 3, 4, 5, 7 and 9 of Table 1.

The system presents a simple consistent interface making heavy use of
buttons and forms, as shown in the Figures below, thus avoiding the need
for staff and students to master a variety of different interfaces to achieve
the mix of messaging most appropriate to flexible learning.
The WEST system provides facilities for individual registration and controlled
access by students who are part of a class studying some course; it allows
the allocation of learning materials as Web pages to students or to the
whole class; it provides one-to-one messaging between student and tutor and
between students, similar to email but based on a Web form as shown in
Figure 2. It also allows one-to-many messaging similar to a bulletin board
or news group.

Students each have access through their Home Page (Figure 3) to their
own coursework page, which is a linked table of contents for the course they
are working on. Students can send messages to their tutor and submit
assignments. They can also send messages to specific students or to the
entire class
through the open-to-everyone
discussion list, where they can read what other students have written about
a course
discussion topic. The simple interface of the discussion list is easy to
understand and use but lacks the thread feature of Internet News.

Tutors can receive messages and assignments from students, reply, mark
and return assignments or have them automatically marked and returned. They
can make announcements to the whole class or address individual students.
Any of the variety of messages can include HTML code and thus include
hypertext references to other resources on the Internet. The use by
students of simple Web server software (available free (for example EasyServe [HREF6]) and
soon to be included in MacOS) will allow multimedia messaging between all
participants.
Course content pages are held in a database by the system and made up on
the fly (with headers and appropriate control buttons) when selected by
students. Course pages are in HTML form. They can include forms and the
system automatically carries out the server-side actions needed to report
the form data to the lecturer.
Form-based exercise pages can include questions with specific answers which
can be automatically marked by the system and returned to the student.
Administration
of the system, including the addition, alteration or removal of content,
classes and students, is through a forms interface, as shown in Figure 4,
and can be done
from any computer able to browse the Web. A lecturer can use dial-in access
to receive, send, create or modify materials using a Mac, Windows or Unix
computer at home.
The course page HTML must be written or pasted into the form as shown below.
This is a far cry from the ease of such Web-page authoring tools as Adobe
PageMill, but the body section of pages
created in a Web editor can be copied and pasted into WEST. The
instructional material can include links to any other page on the Web, as
well as any of the usual variety of embedded Web-delivered multimedia, such
as photographs and diagrams, Quicktime movies, Director animations and
RealAudio streaming sound.

The WEST system currently runs as an Asynchronous CGI application only on
Macintosh servers running MacHTTP or WebStar. The Webstar server software
costs about A$250 and a single-server educational-use WEST licence for 10
simultaneous users (no limit to total users) costs about A$300. Versions of
the WEST software for Unix and Windows NT are in beta now (July,1996).
The WEST system is used in the USA, Canada and Ireland for courses varying
from a resource of information and research on Chemistry to delivery and
management of course material for a multi-disciplinary Open Learning course
on the Famine in Ireland.
L Harasim (1995), "The Virtual University: new approaches to Higher Education in the 21st Century" in "ASCILITE 95 Conference Proceedings" University of Melbourne
J Lave and E Wenger (1990), "Situated Learning: Legitimate Peripheral Participation" , Cambridge, UK, Cambridge University Press
D Rowntree (1985), "Developing courses for students" , PCP, London
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