Conventional
education is characterised by a direct relationship or face-to-face interaction
between the teacher and students. Teachers prepare lessons, discuss with
students, manage the class, select the needed technology, suggest activities,
assess students and provide reinforcement. In other words, the teacher can play
an essential role in facilitating learning and supporting students. Although
distance education is recognised by the separation between the tutor and
learners, this does not mean, however that learners have complete control over
learning. With the development in media and distance education theory, an
important role can be played by distance tutors to enhance learning and support
learners.
Sherry
(1996) indicated that the distance tutor needs to suggest learning resources,
deliver the instruction, determine the degree of interaction and select the
appropriate form of assessment. Moreover, Trentin and Scimeca (1999) argued
that the role of the distance tutor may be as important as that of the course
designer. They suggested that although experts assume a leading role in course
design, they have to be supported by distance tutors. For example, the tutor
can decide the type of material and communication to be used, suggest the human
resources to be involved and translate the course objectives into activities.
1.
The distance tutor may
visit the distant site, or students may take a trip to a central site.
2.
The distance tutor may use
technology (e.g., telephone, e-mail or discussion boards) to interact and
support students.
To
conduct a non-contiguous dialogue and effective relationship between the tutor
and students and encourage them to exchange information and ideas ‘we must have
a broader application of the communicative process and of the technology needed
to support the interaction between the teacher and student appropriately’ (Garrison and Shale, 1990, p. 33). To recognise the
relationship between the distance tutor and students, Shale and Garrison
suggested a model of the educational relationship in distance education
expressed in terms of communication.
In this model, the teacher generates the content to
be delivered by the medium to the student. According to Garrison and Shale
(1990), the ‘negotiation of meaning’ closes the communication loop and ‘is
supported by a different medium from that used to deliver the content’ (p. 36).
However, with the development in technologies that deliver the content and
facilitate two-way communication at the same time (like the WWW), the same medium
can be used to distribute the content and facilitate interaction, allowing the
model above to be represented as follows.
In this model,
the learner can interact with the teacher directly and transmit or receive
information in both directions (e.g., read the content, answer questions,
submit an assignment, receive feedback, etc.). For example, in the absence of
two-way communication technology that transmits the content and the dialogue,
at the Open University instructors use one-to-one telephone calls and audio
conferences to monitor students’ progress and solve course-related problems.
Wyld and Eklund (1997) advised that a paper-based study guide could be used
together with a communication channel (like the telephone) if dialogue is to be
conducted.
Interaction at a Distance
Researchers
always emphasise the importance of interaction in the learning process (Ritchie
and Newby 1989; Harris 1999). Interaction is defined as a process that happens
between the learner and the learning environment, in which the learner takes a
more positive role (Berge, 1997). This environment includes the tutor, students
and the learning content. Interactivity has been described as a key to success
in traditional classroom to enhance learning and motivate learners (Fulford and
Zhang, 1993; Wagner, 1994; Flottemesch, 2000).
Considering
the definitions of distance education above, McIsaac and Gunawardena (1996)
argued that that the isolation of distance students is determined not only by
distance and time but also by the dialogue between the learner and the teacher,
interaction with peers and the design of instruction. Fulford and Zhang (1993)
stated that ‘since teachers and learners are not in the same room, subtle
interactions through body language are lost and learner perceptions of amount
of interaction may be altered’ (p. 8).
In
distance education context, studies found that students who enrolled in
programmes that support and encourage interaction have highly positive
attitudes toward learning and higher levels of achievement than others in
one-way systems (Ritchie and Newby, 1989; Comeaux, 1999). In this regard,
Garrison and Shale(1990) highlighted the relationship between the dropout rates
in a distance education system and its interactive capabilities . They argued
that:
‘[…] improving the quality of the educational process through increased
two-way communication is likely to have the most significant impact upon the
effectiveness of learning and in turn is likely to raise completion rates in
distance education’ (p. 128).
Holmberg (1990)
believes that the ability of the medium to conduct interaction between the
tutor and students is the essential criterion in selection among distance
education technologies. He pointed out that any distance education medium
should be able to provide the tutor and students with means of bringing about
their experience, create rapport between them and offer opportunities for
discussion.
McIsaac
and Gunawardena (1996) indicated three constructs that affect students’
attitudes and achievement at a distance: transactional distance, learner
control and social context. These constructs are mainly affected by the concept
of interaction. Moore
(1989) provided a framework for studying interaction in distance education by
defining three types of interaction:
1.
Learner-content
interaction, which occurs between the learner and the learning content to bring
about changes in the learner’s understanding, perspective or cognitive
structures. Trentin (2000) believes that the quality of learning materials has
an enormous effect on achieving this type of interaction.
2.
Learner-instructor
interaction, which occurs between the learner and the instructor to motivate
and support the learner and allows for clarification of any misunderstanding.
3.
Learner-learner
interaction, which occurs between one learner and another learner, with or
without the presence of an instructor.
Eaton
(1997) agrees with Moore
in defining these types of interaction. However, he described them as two
general types: individual interaction and social interaction. Individual
interaction happens between the learner and the learning material. However,
social interaction happens between two or more learners concerning the learning
material and may involve the instructor.
Stating
another point of view, Hillman et al. (1994) noted that the earlier typologies
of interaction failed to take into account the interaction that occurs when a
learner uses ‘intervening’ technologies to communicate with the content.
Therefore, he suggested a new type of interaction called ‘learner-interface
interaction’, for example, sending and receiving messages using a specific
e-mail program or dealing with the graphical user interface of operating
system. According to Hillman et al., this new type is responsible for
facilitating students’ acquisition of skills needed to participate effectively.
Holmberg
(1990) defined learner-content interaction (individual interaction) as a
‘one-way traffic’ in distance education systems. This one-way traffic is common
in the earlier types of technology (e.g., printed materials and broadcast).
However, using two-way technology (e.g., video-conferencing and the WWW),
‘two-way traffic’ can take place between the tutor and students. In this
regard, Berge (1996) believes that while in earlier distance education
programmes it was possible to conduct interaction only between the instructor
and students, it is possible now for distance education students to interact
with one another.
Garrison
(1990) emphasised the role of interactive media and technology in conducting
both types of interaction. He argued that without using these technologies,
distance learning ‘degenerates’ into the correspondence generation of
independent study in which the student is isolated. To achieve social
interaction in education programmes, usually a real-time (synchronous)
communication technology (e.g., telephone and video conferencing) were being
used. However, with the development in communication technology (like the
Internet), these kinds of interaction do not necessarily require real-time
communication. Interaction can be independent of time (asynchronous), using
communication tools (e.g., e-mail and discussion boards).
The
type of interaction used in any distance education system depends on the nature
of the communication system (synchronous or asynchronous), the kind of
interaction (individual or social) that is needed, the number of learners
(small groups or large groups) and costs. For example, Trentin (2000)
highlighted the importance of group size in the success of the learner-learner
interaction in distance education programmes. He argued that:
‘the more the communication is directed toward socialization and sharing
of ideas and experiences, the larger the discussion group may be, Conversely,
the more the communication is directed toward collaborative study, the more
limited group numbers need to be (Trentin, 2000, p. 20).
However,
implementing interactive technology, like the WWW, and its components is not
enough. Since distance education is characterised by the isolation of the
learner, it means less involvement and less possibility to ask questions. To
solve these problems, Trentin (2000) suggested that:
‘One of the key ingredients for raising the quality of an online course
is strong interaction between the players in the process; organized in
full-fledged virtual classes, the participants must obviously respect schedules
and deadlines if a collaborative working strategy is to be successful’ (p. 20).
Many
suggestions have been offered in the literature showing how to conduct
successful interaction between the learner and the content, the tutor, peers
and the user interface. For example, learner-interface interaction can be
stimulated by instructional activities (e.g., computer games and informal
chatting sessions) that help the learner become comfortable with the technology
(Hillman et al., 1994). In addition, student-to-tutor and student-to-student
interaction can be constructed and fostered using various strategies such as
group-based collaborative projects, presentation boards and tutor questioning
using interactive communication tools such as e-mail and discussion boards
(Anderson, 1987; Moore, 1989).