Abstract
This
paper is about how we deploy to develop situated environments
within ICT in Distance Learning for effective students'
learning inside/outside schools and implications for successful
implementation. We begin with a brief overview of recent
pedagogical changes and the principles with which we attempt
to overcome them. We then expand with novel technological
view on this in the remainder of the paper. This perspective
is based on a research study in the NIME, involving cooperational
research activities with university staff and electronics
companies. The conclusions reported in this paper are
intended to be a guide to help educators to deploy streaming
video and learning with monitoring within Web provided
by the MPEG-4, and make the most of the pedagogic opportunities.
Key
Words
Situated
Learning, Learning Environments, Intentional Learning,
Distance Learning, Computer Mediated Monitoring, Streaming
video
Introduction
Integrating
on-line information communication technologies (ICT) into
both educational sites and distance learning courses is
becoming more of an issue. In recent times, institutions
have been called on to make significant increases in the
quality and quantity of the educational experience. Consequently,
we have been exploring the use of the Web as universal
interface together with course/classroom software solutions
as a means to enhance and extend the traditional educational
methodologies with possible later extension into the distance
learning environment.
However,
merely novel appearance of ICT can not evoke aptitudes
of students, also fascination of new technology can not
keep their engagement for full of the course.
Recent
research studies explore that media do not influence learning
under any conditions. The best current evidence is that
media are mere vehicles that deliver instruction but do
not influence student achievement any more than the truck
that delivers our groceries causes changes in our nutrition
(Clark, 1975; Clark et al., 1975; Clark, 1982; Salomon
et al., 1977).
Nevertheless,
the choice of vehicle does influence the cost and/or extent
of distributing instruction. Technology-aided, self-directed
learning is a key element. Technology does not guarantee
productivity; but coupled with progress in pedagogy and
a paradigm shift to self directed, intentional learning,
technology can make greater learning productivity possible
(Johnstone, 1992; Twigg, 1992).
Progress
of Pedagogy
The
term 'Distance Learning' is often interchanged with 'Distance
Education.' However, distance education just means instructional
delivery that does not constrain the student to be physically
present in the same location as the instructor. Therefore,
interchangeable treatment of these terms is inaccurate
since institutions/teachers control educational delivery
while the student is responsible for learning. In other
words, distance learning is the result of distance education
(The Distance Learning Resource Network, 1999).
Increasingly
there are fewer comments about the wonders of technology
and more about the new forms of community brought about
by ICT, about the new learning environment in cyberspace.
Schools
are not only for the delivery of knowledge. There is a
lot more involved in the learning process than just accessing
information. We can not be looking at distance learning
or technology as an alternative to things that happen
in schools. We have to use new technology in distance
learning as a place for learning activities, and the access
to the learning environment.
In
addition, also, today's theoretical interest on which
instructional models are based affects not only the way
in which information is transferred to the student, but
also the way in which the learning of students need be
considered.
With
regard to this, Carroll [6] proposed roles of education
for learners that
- (1) All learning
tasks should be meaningful and self-contained activities.
- (2) Learners
should be given realistic projects as quickly as possible.
- (3) Instruction
should permit self-directed reasoning and improvising
by increasing the number of active learning activities.
- (4) Training
materials and activities should provide for error recognition
and recovery.
- (5) There should
be a close linkage between the training and actual system.
These
roles should ideally take place within the framework of
what Bruner (1996) refers to as the "psycho-cultural"
approach to education. However, an increasing demand for
competence-based and fixed knowledge acquisition-based
curricula in ICT will cause disproportion with these roles.
Then, tactical decision for deployment of course with
regard to methodological approaches that are reflected
both pedagogical principles and technological benefit
must be inspired. Table 1 below provides pedagogical changes
in understanding of learning associated with technological
innovation.
It
could be formulated from the recent pedagogical movement
that resource based learning would outweigh conventional
top down lesson in cyberspace. In resource based learning,
there are two major views which impact a course design
of distance learning: constructivist theory and information
processing theory (Bredo, 1994).
Table1:
Pedagogical Changes in Learning and Instruction
| |
Traditional
Lesson |
Mediated
Lesson |
Resource-based
Learning |
| Place
of Learning |
Classroom |
Course
in Network Site |
Cyberspace |
| Learning
Style |
Text
Based, Competitive Learning |
Text
Based, Competitive Learning |
Mind-on,
Independent Learning, Sometimes Cooperative Learning |
| Principle |
Behaviorist
Based |
Behaviorist
Based |
Constructivist
Based or Information Processing Theory Based |
| Major
Materials |
Textbook,
Teacher |
Digitized
Material, Tele-Teacher |
Authentic
Situation, Student's Prior Experience and Knowledge |
| Supportive
Materials |
Books |
Database,
Books |
Distributed
Information in Cyberspace |
| Knowledge
(fixed) |
Content |
Content |
Intentional
Learning |
| Content |
Many
Topics and Little Depth |
Many
Topics and Little Depth |
Few
Topics and Depth |
| Teacher's
Role |
Providing
Knowledge |
Manage
the Students' Process, Remedial Instruction |
Facilitator,
Expert |
| Objectives |
Fixed
Knowledge Acquisition |
Fixed
Knowledge Acquisition |
Knowledge
Building |
| Evaluation |
Fact
Oriented |
Fact
Oriented |
Concept
Oriented |
The
dominant view is based on constructivist principle, in
which a learner actively constructs an internal representation
of knowledge by interacting with the authentic materials
to be learned (Lave et al, 1991). This is also the basis
for situated cognition and problem based learning (PBL).
The alternative view is the information processing approach,
and based on cases. This principle is called as Case-Based
Reasoning (CBR). In CBR, solutions are generated by retrieving
the most relevant cases from memory and adapting them
to fit the new situations. Thus in CBR, reasoning is deeply
relevant to remembering (Schank, 1982). The CBR approach
derives from two tenets about the nature of the world.
The first tenet is that the world is regular: similar
problems have similar solutions. The second tenet is that
the types of problems a student encounters tend to recur.
When two tenets hold, CBR is an effective reasoning strategy
(Leake, 1996).
Solutions
Designing
learning environment in ICT must begin with the articulation
of vision. We need to reconsider by returning to basics,
what we mean by good learning in the light of the versatile
technologies now. Both principle above needs authenticity
of content, and a capacity for self-organization and confident
self-direction of students are required, if they are to
process effective resource based learning.
Monitoring
through ICT is one of the solutions for supporting resource
based learning. Monitoring is a way to actually involve
students in a research project (Bartlett et al., 1996).
In monitoring, students analyze aspects of environment
and their conclusions are more comprehensive and valuable
when data have been summed and drawn from a site. For
example, 'Science Monitoring' is the way that actual science
data can allow students to see the entire future of the
concept that they are studying. Also, long-term data show
students that a single experiment does not tell the whole
story, and offer the opportunity for students to compare
their own experimental results with information spanning
days, weeks, seasons, and even years (Yoshida, 1996).
In addition, monitoring give them a chance to lead them
to authentic situation and enhance their engagement.
As
a fact of this, one of the monitoring sites; 'Nasubino
heya' that relates to a TV program in Japan had gathered
tremendous 16 million accesses during merely 24 hours.
Equally,
monitoring with streaming video has likelihood to become
a worldwide common event across the different mother language
students.
Media
Literacy and Skills in Instruction (MLSI) Project at National
Institute of Multimedia Education (NIME) attempts application
research of MPEG-4 to education cooperating with educational
staff of universities and specialists in Toshiba Ltd.
and Kanematu Electronics Ltd.
MPEG-4
is a standard of moving picture developed by MPEG (Moving
Picture Experts Group) (Fig1). MPEG-4 standard of simple
pro-file for Internet targets the very low coded bit rates
between 6K and 384Kbps, and enables streaming videos in
low bit rate Internet over analog telephone lines (Fig2
includes bit rates of core pro-file of MPEG-4).
MPEG-4
enables the production of content that has far greater
reusability, has greater flexibility than is possible
today with individual technologies such as digital television,
animated graphics, World Wide Web (WWW)
pages and their extensions. It also brings multimedia
to new networks.
With
merely a camera, an MPRG-4 encoder, and a server, a monitoring
system can be composed and transfer streaming videos or
motion pictures to a number of students (Fig3).
Another
solution for supporting resource based independent learning
is streaming video (Fig4).
When
the students had time unlimited for solving an open-question
assignment, time spent was different across them, and
it could not be seen correlation between time spent and
achievement of product (Yoshida et al., 1999). Students'
engagement is not a subordinate issue of designing, but
an implicated issue that need to be refined. Nowadays,
even educators working at distance education institutions
formulate that main source for distance education should
be printed materials, not a broadcasting TV program.
It
has relevant role as a pacemaker to maintain students'
engagement, and it should conserve students' drive potentially.
Alternatively, it was remarked motivational effects on
multi mode contents, such as, "Integrated sound,
motion, image, and text create a rich new learning environment
awash with possibility and a clear potential to increase
student involvement in the learning process (Task Force
on Distance Education, 1992)." Now, there are various
video codecs known for Internet streaming videos, such
as, QuickTime, RealPlayer, StreamWorks, VDOLivePlayer.
Some of these have the efficiency to synchronize video
with texts and images in a same html window. Consequently,
MPEG-4 is aiming to standardize these varieties of codecs
within same interface. Equally, MPEG-4 has been evolved
to be able to control objects inside the streaming video.
Thus, MPEG-4 has more flexibility and benefit to make
rich feature, for instance, developing multi language
or cultural program, adding cues or information inside
streaming videos. Potentially, streaming video of MPEG-4
is constituent to invigorate distance learners.
Conclusion
With
regard to above-mentioned solutions that enhance students'
distance learning, it could be honed the following comparison
between PBL and CBR (Table2).
Table2:
Two Principles of Resource based Problem Solving
|
Problem
Based Learning (PBL)
|
Case
Based Reasoning (CBR)
|
|
Process
Draws Conclusions
|
Cases
are Adapted to Fit the Situations
|
|
Chain
the Embedded Rules
|
Retrieve
the most Relevant Cases from Memory
|
|
Deductive
|
Anagogic,
Comparative
|
|
Access
to Knowledge in Memory
|
Access
to Experiences in Memory
|
|
Building
Library of Rules in Memory
|
Building
Library of Cases in Memory
|
|
Teaching
Component by Component
|
Teaching
Cases
|
Although
both principles intend to lead the students into authentic
situation, PBL differs in the ultimate goal of the learning
process from the CBR, since the emphasis is on the chain
the rules for reasoning. This contrast yields strategy
for design, educator should emphasize sequence of solving
a problem, if a course is embedded PBL. Understanding
the importance of selection of scenes that show crucial
cues and evidence for reasoning is fairly requirement
for an educator.
As
one of recent response to effective application of video,
Bransford et al. (1990) proposed 'Anchored Instruction'
for students to pose and solve complex, realistic problems.
Videos were served as "anchors" for all subsequent
learning. Continuously, students were asked to examine
the video (e.g. "Young Sherlock Holmes" was
used)
in terms of causal connections, motives of the characters,
and authenticity of the settings in order to understand
the nature of life in Victorian England.
In
order to achieve this learning in cyberspace, MPEG-4 will
profoundly be pervasive to elicit deliberate design by
effects to synchronize various modes in HTML with streaming
video.
On
the other hand, CBR make more stress on schema based learning
that works best when it is exposed to a pattern to be
learned in its authentic full complexity. In attempts
to address authentic environments in cyberspace outlined
by reality, "Classroom Connect" developed an
interactive Web site (http://www.classroom.com/). It conducts students
to direct an expedition (called quest) that explores one
of mysteries of all time on a continent, and its animals
and traditional peoples is sure to stimulate the natural
curiosity of students' minds. During a quest, scientists
and explorers investigate the animals, plants, geology
and so on. Each week student collaborators vote to help
decide their route and with whom they should interact.
Until now, MayaQuest, AfricaQuest, AsiaQuest have been
executed with millions of participants of students and
will go on the next GalapagosQuest soon. Thus, monitoring
through cyberspace enables to be as effective example
for CBR, and MPEG-4 will exceedingly be pervasive to lead
attractive authentic design.
Note
More
information of MPEG-4 and some samples can be seen at
Web Site below.
(http://www2.toshiba.co.jp/mmotion/)
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YOSHIDA, Masami
National Institute of Multimedia Education,
Research and Development Department
2-12 Wakaba, Mihama, Chiba 261-0014, Japan / masami@nime.ac.jp
Visiting Researcher of Chulalongkorn University, Faculty
of Education
POONYAKANOK, Puangkaew
Chulalongkorn University, Faculty of Education
Bangkok 10330, Thailand / pkaew@chula.ac.th
TIRANASAR, Ampai
Chulalongkorn University, Faculty of Education
Bangkok 10330, Thailand / tampai1@chula.ac.th
MORI, Sohei
Kanematsu Electronics LTD., Open Systems
Sales Division Sect.1
2-17-5, Kyobashi, Chuo-ku, Tokyo, Japan / smori@kel.co.jp
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