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<article xmlns:xlink="http://www.w3.org/1999/xlink">
  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>AN ADAPTABLE E-LEARNING SYSTEM FOR PUPILS WITH SPECIFIC LEARNING DIFFICULTIES Petia Kademova-Katzarova, Rumen Andreev, Valentina Terzieva Institute of Information and Communication Technologies, Bulgarian Academy of Sciences</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Learning Goals</string-name>
        </contrib>
      </contrib-group>
      <abstract>
        <p>The education of pupils with learning difficulties is very complicated due to great variety of their specific cognitive abilities and psychological factors. It requires the use of personalized learning facilities that can help achievement of their learning goals. For that reason we design an adaptable system for development of tools on the basis of suitable pedagogical methods and learning resources. The system provides facilities for adaptation of learning units to the learning profile of each pupil. The substantial elements of this adaptation technique are carried out by activities of the resource-developer. The paper presents an approach to a description of these activities supported by the adaptable system. The adaptation bases on reusable learning units that can be modified in correspondence with the learner's profile, learning context or scenario.</p>
      </abstract>
      <kwd-group>
        <kwd>- Learning difficulties</kwd>
        <kwd>Cognitive abilities</kwd>
        <kwd>Learning style</kwd>
        <kwd>Adaptation</kwd>
        <kwd>Personalisation</kwd>
        <kwd>Reusable learning units</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>1. INTRODUCTION</title>
      <p>There are many electronic educational systems but for
the purposes of school education almost nothing has
been done in this regard. Rarely as it may be,
elearning can be found in secondary schools. However
teachers don’t utilise modern ICT in primary school.
Long ago children in kindergartens have been playing
on computers, but this interesting “thing” is not set to
work in educational process. The reason probably is
the difficulty of creating appropriate educational
products for young children, because their teaching
requires not only a mechanical "dumping" of useful
information and knowledge. The learning process is
much more complex and includes structured
presentation of the learning material in appropriate
form and appearance consistent with age and
background.</p>
      <p>From another point of view, the education in
primary school comes across other important problem
– certain characteristics of the individuals might
hamper them to acquire basic skills such as reading,
writing, arithmetic. Many children still lag behind in
this early stage of their education not because they are
stupid or lazy (common labels), but because they have
a special way of perceiving and processing
information. These children do not receive teaching
adequate to their abilities, the education system
rejects them, and society loses specialists with
valuable qualities simply because the school failed to
discover and develop these qualities on time. Typical
examples are children with dyslexia (dyscalculia,
dysgraphia), with ADHS and ADS, even with autism.</p>
    </sec>
    <sec id="sec-2">
      <title>2. PUPILS WITH LEARNING DIFFICULTIES</title>
      <p>
        Dyslexia, dyscalculia, dysgraphia are disorders in the
development of school skills, which are classified in
the medical registers, though they are not diseases.
The perceiving of environment signals and their
processing in the brain shows a specificity that can
lead to some distortion of the information and to
confusion. For example, in contrast to other people
the dyslexics think mostly in pictures [
        <xref ref-type="bibr" rid="ref6">6</xref>
        ]. Every
thought, every idea and every emotion they “see” as a
three-dimensional image in their minds.
Consequently, they have problems with
twodimensional symbols and signs which have to be
ordered or directed in a certain way to be deciphered
correctly. Letters with the same graphical
representation but different orientation are
confounded (N and Z, b and d). Words without a
picture image as prepositions or adverbs hamper
them. Therefore, the so-called “cultural techniques”
[
        <xref ref-type="bibr" rid="ref3">3</xref>
        ] – reading, writing, mathematical expressions are
difficult to handle.
      </p>
    </sec>
    <sec id="sec-3">
      <title>3. AN OPPORTUNITY FOR SPECIAL</title>
    </sec>
    <sec id="sec-4">
      <title>EDUCATION</title>
      <p>According to state requirements such children should
be integrated together with the others, but they need
individual curricula, extra special trained teachers,
etc. The aim is to achieve individualization in the
teaching process, using pupil’s strong skills and
personal qualities, and through appropriate exercises
to support and develop the weak ones.</p>
      <sec id="sec-4-1">
        <title>That is why these pupils with specific learning</title>
        <p>
          (cognitive) difficulties need special education. It
could be achieved by development of e-learning
system [
          <xref ref-type="bibr" rid="ref1">1</xref>
          ] that has to ensure collaboration among all
the professionals involved in teaching, generation and
adaptation of learning facilities.
        </p>
      </sec>
    </sec>
    <sec id="sec-5">
      <title>Psychological</title>
    </sec>
    <sec id="sec-6">
      <title>Pedagogical</title>
    </sec>
    <sec id="sec-7">
      <title>Technological</title>
      <p>Early screening and identification of Individual curricula, personal
children with learning difficulties teaching assistant</p>
      <sec id="sec-7-1">
        <title>Tool for generation of computerized psychological tests</title>
      </sec>
      <sec id="sec-7-2">
        <title>Detection of cognitive abilities and psychological characteristics</title>
      </sec>
      <sec id="sec-7-3">
        <title>Close collaboration among all professionals concerned with the problem</title>
      </sec>
      <sec id="sec-7-4">
        <title>ICT-based tools allowing collaboration</title>
      </sec>
      <sec id="sec-7-5">
        <title>Defining of psychological profile and learning style</title>
      </sec>
      <sec id="sec-7-6">
        <title>Recommendations for learning</title>
        <p>environment (comfortable, without
stress and frustration)</p>
      </sec>
      <sec id="sec-7-7">
        <title>Relaxed and adaptable learning environment enabling to bestow various encouraging bonuses (music, videos, games, etc.)</title>
      </sec>
      <sec id="sec-7-8">
        <title>ICT-based adaptable user-friendly environment (intuitive, language independent, allowing tuning and contextualization)</title>
        <p>The development of personalized e-learning facilities
requires design of adaptable e-learning system that
supports production and delivery of learning
resources. We suggest a conceptual model of such
adaptable e-learning system shown on Figure 1.</p>
      </sec>
      <sec id="sec-7-9">
        <title>The basic elements in this model are the learner’s profile, the pedagogical aspects, the resulting pedagogical format and the appropriate learning units.</title>
      </sec>
    </sec>
    <sec id="sec-8">
      <title>4.1. The learner’s profile</title>
      <p>The learner’s profile represents cognitive abilities and
psychological characteristics. It defines a learning
style and appropriate pedagogical methods and tools.
The determination of the cognitive abilities depends
on the following important characteristics, which are
derived during psychological testing:
• Memorizing (short term and long term memory),
• Attention,
• Concentration,
• Absorption capacity,
• Observing ability,
• Working capacity,
• Orientation, Coordination, Balance,
• Motor functions (fine motor skills),
• Communication skills,
• Handling abstract terms and symbols,
• Way of thinking – in terms (“sequential”) / in
pictures (“quasi parallel”).</p>
      <p>Some significant psychological features that have
influence on the learning process are self-assessment,
imagination, patience, excitability and emotionality.
All these characteristics could be easily assessed by
computerized psychological tests. They should be in
the form of amusing games or entertaining tasks in
order to prevent stress and frustration, so that children
could do their best. The results and indicators are the
basis for the psychological profile of the pupil. This
profile determines the teaching style, methods and
tools which serve to arrange and to accomplish the
education process in the most appropriate way.</p>
    </sec>
    <sec id="sec-9">
      <title>4.2. The pedagogical room</title>
      <p>
        The pedagogical room consists of pedagogical
methods and pedagogical tools that are in
correspondence with the learning style. The most
commonly used pedagogical methods are:
• Informational – the teaching is performed using
“instructions”. Key elements of this method are
the messages and the symbols.
• Phenomenological – the knowledge is build up
as an event. It is accepted and absorbed through
senses and emotions [
        <xref ref-type="bibr" rid="ref7">7</xref>
        ].
• Collaborative – this method is connected with
the socio-cultural environment. Thus knowledge
and skills are formed in a family, in a class,
communities, societies, ethnic groups, etc. The
knowledge and the skills are “passed over”, the
experience is shared. Games are typical example
of this educational approach.
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      </p>
      <sec id="sec-9-1">
        <title>Cognitive Abilities:</title>
        <p>strong / weak</p>
        <sec id="sec-9-1-1">
          <title>Learner’s Profile</title>
          <p>Contextualization</p>
        </sec>
      </sec>
      <sec id="sec-9-2">
        <title>Local Specifics</title>
      </sec>
      <sec id="sec-9-3">
        <title>Fine Tuning supplied adjusts declares</title>
        <p>defines
Learning Styles
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i
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b</p>
        <sec id="sec-9-3-1">
          <title>Pedagogical Format</title>
          <p>Pedagogical Room</p>
        </sec>
      </sec>
      <sec id="sec-9-4">
        <title>Pedagogical Tools</title>
      </sec>
      <sec id="sec-9-5">
        <title>Pedagogical</title>
        <p>Methods
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implemented
New-Composed Units
supplied
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        <sec id="sec-9-5-1">
          <title>Ready for Use</title>
        </sec>
        <sec id="sec-9-5-2">
          <title>Unit</title>
          <p>supplied</p>
          <p>Existing Units
R e u s e a b l e</p>
          <p>L e a r n i n g</p>
          <p>U n i t s
Children with dyslexia are predisposed to learn
mostly by the phenomenological method as they can
observe the action and get a real idea of the
phenomenon. At the same time they can form an
emotional connection with the subject matter, which
helps focusing attention and supports the memorizing.</p>
        </sec>
      </sec>
    </sec>
    <sec id="sec-10">
      <title>4.3. The pedagogical format</title>
      <p>The pedagogical format describes the way of
knowledge presentation in the learning units. It is
built on the basis of the selected pedagogical methods
and tools in compliance with pupils’ learning style.</p>
    </sec>
    <sec id="sec-11">
      <title>4.4. The learning units</title>
      <p>
        The system allows access to learning units stored in
databases or repositories. These resources can be
modified, adapted and reused in a process of
composition of new learning units according to the
given pedagogical format [
        <xref ref-type="bibr" rid="ref5">5</xref>
        ].
      </p>
      <p>According to the Figure 1, the psychological test
detects the strong and week points of cognitive
abilities that have to be underlined in the learner’s
profile. Subject domain contains knowledge about the
learning subject(s) (reading, writing, language,
mathematics, etc.). It gives the criteria for selecting
the appropriate personal features from the learner’s
profile. On that basis the learning style is determined
and the pedagogical methods and tools are chosen. As
above mentioned, those are the factors for building
the pedagogical format. The latter serves as a frame
for composing learning units. The activities regarding
constructing of pedagogical formats and learning
units are supported by the ICT-based authoring tool.
Considering the methodological recommendations
and employing the authoring tool, teachers create new
learning units, reuse the existing ones or edit, update
them and save for future application. Each learning
unit done according to the above described procedure
is contextualized with regard to the local specifics and
learner’s preferences. Thus, the composed unit is
ready for use.</p>
    </sec>
    <sec id="sec-12">
      <title>5. FUNCTIONAL MODEL OF THE</title>
    </sec>
    <sec id="sec-13">
      <title>E-LEARNING SYSTEM</title>
      <p>
        The functional model of e-learning system can be
represented as composed of three parts [
        <xref ref-type="bibr" rid="ref4">4</xref>
        ] – the users,
the ICT platform and their interactions (Figure 2).
      </p>
      <sec id="sec-13-1">
        <title>Some essential characteristics of the system are:</title>
        <p>• To have sufficient technical tools in order to
meet the requirements for diverse presentations
of the learning matters including sounds,
pictures, movies, clips, animations etc.
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      </sec>
    </sec>
    <sec id="sec-14">
      <title>Intention layer:</title>
      <p>goals to be obtained</p>
    </sec>
    <sec id="sec-15">
      <title>Conceptual layer:</title>
      <p>methodology
Implementation layer:
authoring tool
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    </sec>
    <sec id="sec-16">
      <title>INTERACTION</title>
      <p>Records of the learning process
(task – solution – attempts – errors)
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      <p>A</p>
    </sec>
    <sec id="sec-17">
      <title>Interaction Knowledge Base</title>
      <p>s
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      <sec id="sec-17-1">
        <title>To allow access to appropriate tools for</title>
        <p>modelling and design of 3D objects.</p>
      </sec>
      <sec id="sec-17-2">
        <title>To maintain data bases that contain learning</title>
        <p>resources – learning units, learning facilities.</p>
      </sec>
      <sec id="sec-17-3">
        <title>To have user friendly design.</title>
      </sec>
      <sec id="sec-17-4">
        <title>To be flexible and adaptable.</title>
        <p>5.1. Users
Among the above mentioned essentials, such a
system must have very specific features and
characteristics that meet the requirements and
perform functions of different types of users:</p>
      </sec>
      <sec id="sec-17-5">
        <title>1. Professionals (psychologists, pedagogues –</title>
        <p>methodologists, teachers and speech
therapists),</p>
      </sec>
      <sec id="sec-17-6">
        <title>2. Pupils,</title>
      </sec>
      <sec id="sec-17-7">
        <title>3. Parents.</title>
      </sec>
      <sec id="sec-17-8">
        <title>These types of users (PPP) exploit the facilities of the system in different ways and in different capacity and therefore they obtain different access rights.</title>
      </sec>
      <sec id="sec-17-9">
        <title>Pupils have access only to learning materials</title>
        <p>and to some games and entertainment, which they
receive as bonuses and rewards in order to be
stimulated to deal with the material. It should be
noted that the stimulus should only be positive; i.e.
there shouldn’t be penalties.</p>
      </sec>
      <sec id="sec-17-10">
        <title>Parents have access to the learning outcomes of</title>
        <p>their children and in case they could support
children in their training. Also they can share ideas,
impressions and experiences in parental forums.</p>
      </sec>
      <sec id="sec-17-11">
        <title>They can seek advices about problems concerning</title>
        <p>the children’s training from the professionals.</p>
        <p>Professionals have greater access rights to the
system. On the one hand, they must monitor the
training process in order to record and analyse the
mastering of learning material. Future steps in the
learning path are determined by these records and
analysis (adaptation). On the other hand, they also
participate in the forums – both professional and
popular. In the first case they share their problems,
ideas, solutions, tips, experiences, arrange
conferences. In the latter case, they give advices
and suggestions at "common level" in
communication with parents, who generally are not
experts in the matter.</p>
      </sec>
    </sec>
    <sec id="sec-18">
      <title>5.2. ICT platform</title>
      <p>The ICT platform consists of three layers –
intentional, conceptual and implementation. The
intention layer presents learning goals that have to
be achieved and are built-in parameters of the
elearning system. Those specify the knowledge,
skills and abilities (in one or several subjects) that
must be acquired, in compliance with the
government regulations.</p>
      <sec id="sec-18-1">
        <title>The possible approaches to attain the learning</title>
        <p>goals are presented in the conceptual layer.
According to the personal profile of the child the
appropriate pedagogical method(s) are selected and
implemented so as to achieve the learning goals
efficiently. Furthermore, this profile serves for
determination of the learning style and gives
guidelines for the choice of relevant modes and forms of
the examination. The latter shouldn’t be distressful
and upsetting, but motivating the pupils to do their
best.</p>
        <p>Methodologists consider motivation and
learner’s activity as the most important elements for
successful learning strategy. In order to awake the
children’s activity it is necessary to engage them in
the learning process, which could be done best
through the emotional connection with the learning
matter. Motivation can be provoked by presenting
the subject clearly and precisely so as to be
understood and absorbed quickly enough. Thus the
accomplishment of learning tasks with noticeable
results forces the motivation and heightens the
selfesteem and self-confidence of the child.</p>
        <p>The implementation layer includes diverse
instruments that serve to gain the learning
objectives identified in the intention layer. Modern
technologies provide a huge range of capabilities to
assist to the full extent the creation of learning units
using different pedagogical formats. The latter are
implemented by the specially designed authoring
tool.</p>
        <p>Professionals use this authoring tool to compose
learning resources. It supports various functions –
development, structuring, reusing and adaptation of
learning units, so as to carry out different learning
courses and scenarios. In order to meet the
necessities of the pupils, determined by their
individual cognitive characteristics, the authoring
tool must allow adaptation of learning units,
regarding the following aspects:
• Volume,
• Presentation (through different types of media
– illustrations, simulations),
• Contextualization:
o Content Localization – language, custom,
traditions, etc.,
o</p>
        <p>Fine Tuning – font, colour, size; etc.</p>
      </sec>
    </sec>
    <sec id="sec-19">
      <title>5.3. Interaction</title>
      <p>The interaction part of the system contains a
database for every child's reactions (assigned tasks,
provided solutions, performed attempts, made
errors). On this basis, the professionals can
determine the level of the acquired knowledge and
infer how to continue the learning path. Besides the
above mentioned the system provides opportunities
to exchange information – opinions, ideas, plans,
experiences, tips – between the different type of
users on the one hand and among peers on the
other. Therefore the professionals outline and
arrange guidelines for both the further development
and assembling of learning units and any necessary
adaptations to the specific needs of the pupils.</p>
    </sec>
    <sec id="sec-20">
      <title>6. AN EXAMPLE</title>
      <p>
        The children with dyslexia (one of the common
learning difficulties) need visual representation of
every single conception in order to understand its
meaning. That is why they have difficulty with
prepositions, adverbs and similar words. Therefore
a phenomenological approach is applied for solving
such problems. The Davis’ method [
        <xref ref-type="bibr" rid="ref2">2</xref>
        ] is based on
this technique. It recommends following steps:
• clear and precise explanation of the selected
word;
• helping pupils to use this word in examples;
• motivating them to construct model(s),
representing their idea of the word.
      </p>
      <sec id="sec-20-1">
        <title>The models could be either hand-made of plasticine</title>
        <p>(clay), or formed using ICT-based tools (e.g.
Google SketchUp 6, TopMod3d, etc.). In addition
the modelled word has to be written. In this way the
child obtains an integral idea of the word: meaning,
image and spelling and is able to understand and
use it properly. The example on Figure 3 shows the
process of building the conception of the adverb
“backwards”.</p>
      </sec>
      <sec id="sec-20-2">
        <title>The child’s explanation was: “Four balls plus one ball make five balls; ‘Backwards’ means the opposite action”.</title>
      </sec>
    </sec>
    <sec id="sec-21">
      <title>7. CONCLUSIONS</title>
      <p>The presented e-learning system exploits
effectively ICT for gaining better educational
results for all pupils. Obviously, pupils with
learning difficulties have characteristics and
perceptions that distinguish them from the other
pupils. These differences vary in some extent and
cause specific knowledge processing. For that
reason such pupils demand personalized education.</p>
      <sec id="sec-21-1">
        <title>It should be adapted to their individual cognitive</title>
        <p>abilities and corresponding learning style. This
approach is of benefit for all the children as well,
but it is crucial for these with learning difficulties
as dyslexics.</p>
      </sec>
      <sec id="sec-21-2">
        <title>On the other hand, the composition and</title>
        <p>adaptation of learning units for learners who need
special education is very complicated and fatigue
process, which requires additional teachers’
abilities. Hence ICT-based authoring tools are
badly needed and of vital importance nowadays.</p>
      </sec>
      <sec id="sec-21-3">
        <title>That is the reason for developing a system that</title>
        <p>integrates ICT tools for:
• Collaboration between professionals,
• Facilities supporting the learning process,
• Creation, reusing and adaptation of learning
units.</p>
        <p>Furthermore, the system performs a technique
for personalisation of learning units in
correspondence with the learners’ profile of each
pupil. All this activities integrated in such a system
not only make easier and optimize the teachers’
work, but contribute to achieving efficient learning
process.</p>
      </sec>
    </sec>
    <sec id="sec-22">
      <title>8. REFERENCES</title>
    </sec>
  </body>
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