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Μαθησιακά Αντικείμενα: Χαρακτηρίζοντας τις Αυτόνομες Μονάδες Ψηφιακού Εκπαιδευτικού Υλικού στην εξ Αποστάσεως Εκπαίδευση

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Abstract

Η επιτυχία ενός προγράμματος εξ αποστάσεως εκπαίδευσης εξαρτάται σε σημαντικό βαθμό από το είδος και την ποιότητα του προσφερόμενου ψηφιακού εκπαιδευτικού υλικού. Αν, ωστόσο, αναλογιστούμε τους ταχείς ρυθμούς με τους οποίους αυξάνεται ο όγκος του διατιθέμενου εκπαιδευτικού περιεχόμενου σήμερα, όπως και τις ποικίλες παραμέτρους που επηρεάζουν την επιτυχή διαχείριση και ανάκτησή του, μπορούμε να συμπεράνουμε πόσο ζωτικής σημασίας είναι η απόδοση ενός σωστού ορισμού για την έννοια του «μαθησιακού αντικείμενου», ως αυτόνομη μονάδα εκπαιδευτικού υλικού. Κατά καιρούς έχουν αποδοθεί διάφοροι ορισμοί και ερμηνείες, έχουν αναφερθεί λεπτομέρειες για τη δομή και το περιεχόμενο του μαθησιακού αντικειμένου, για τη συσχέτισή του με την εκπαιδευτική διαδικασία γενικότερα. Εντούτοις, δεν έχει ακόμα υιοθετηθεί ένα ενιαίο πλαίσιο για το τι και πώς ακριβώς πρέπει να είναι ένα μαθησιακό αντικείμενο. Λαμβάνοντας υπόψη τα παραπάνω, μέσα από αυτή την εργασία επιχειρείται να δοθεί ένας ικανοποιητικός χαρακτηρισμός του μαθησιακού αντικειμένου, τέτοιος ώστε να ανταποκρίνεται στη λειτουργία του ως αυτόνομη μονάδα ψηφιακού εκπαιδευτικού υλικού που τίθεται στις υπηρεσίες και στους στόχους της ηλεκτρονικής μάθησης.
Διεθνές Συνέδριο για την Ανοικτή & εξ Αποστάσεως Εκπαίδευση
Τομ. 6, 2011
Μαθησιακά Αντικείμενα: Χαρακτηρίζοντας τις
Αυτόνομες Μονάδες Ψηφιακού Εκπαιδευτικού
Υλικού στην εξ Αποστάσεως Εκπαίδευση
Νικολόπουλος Γιώργος Ελληνικό Ανοικτό
Πανεπιστήμιο
Πιερρακέας Χρήστος Ελληνικό Ανοικτό
Πανεπιστήμιο
Καμέας Αχιλλέας Ελληνικό Ανοικτό
Πανεπιστήμιο
10.12681/icodl.704
Copyright © 2011 Γιώργος Νικολόπουλος, Χρήστος
Πιερρακέας, Αχιλλέας Καμέας
To cite this article:
Νικολόπουλος, Πιερρακέας, & Καμέας (2011). Μαθησιακά Αντικείμενα: Χαρακτηρίζοντας τις Αυτόνομες Μονάδες
Ψηφιακού Εκπαιδευτικού Υλικού στην εξ Αποστάσεως Εκπαίδευση. Διεθνές Συνέδριο για την Ανοικτή & εξ
Αποστάσεως Εκπαίδευση, 6, .
http://epublishing.ekt.gr | e-Publisher: EKT | Downloaded at 29/06/2016 17:16:51 |
6th International Conference in Open & Distance Learning - November 2011, Loutraki, Greece - PROCEEDINGS
SECTION A: theoretical papers, original research and scientific articles 88

 
Learning Objects: Characterizing the Self-contained Units of Educational
Material in Distance Learning






nikolopoulos@eap.gr






pierrakeas@eap.gr






kameas@eap.gr
Abstract
One of the main aspects of a successful distance learning course is to provide
educational material of high quality. But if we take into account the vast and
continually increasing amount of educational content, as well as the various factors
that may affect its successful management and retrieval, one can realize how crucial is
to firstly identify what the notion of  learning object   -contained unit of
educational material, exactly infers. Although many descriptions and characteristics
have been given about learning objects along times, there is no common agreement
about its exact definition and structure. For this reason, through this work we try to
identify components, its correlation with
the educational objectives and instructional design in general, in an attempt to make it
able to efficiently serve its scope within a distance learning environment.
Key-words: learning objects, distance learning

  
          
  

         

    ,    
         
         
         .
        

       
         
         

http://epublishing.ekt.gr | e-Publisher: EKT | Downloaded at 29/06/2016 17:16:51 |
6th International Conference in Open & Distance Learning - November 2011, Loutraki, Greece - PROCEEDINGS
SECTION A: theoretical papers, original research and scientific articles 89
 : , 
1. 
       
 ,     
 
         
.
         
         
   (Baruque et
al, 2003).       ,   
      
   
  
            
        
          
 
           
          
       
    
 .
2.  
2.1  (Learning Objects)
          
 (e-learning) 
     
         
     
        
       
           
          
     
 
            
           
        
        
     
 :
IEEE Learning Technology Standards Committee (LTSC): 
         
          

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6th International Conference in Open & Distance Learning - November 2011, Loutraki, Greece - PROCEEDINGS
SECTION A: theoretical papers, original research and scientific articles 90
David A.Wiley (2000): «     


L Allier (1997):      
        
 
Pithamber R. Polsani (2003):     



          
          
 
 , 
Pithamber R. Polsani (Pithamber, 2003):
        
         

 

      

         
         
 .
       
         
          

2.2  
         
         
.     Susan E. Metros (Metros, 2005) 
        
         (learning
objective)          
         Lori Mortimer
(Mortimer, 2002),         

       
.   
 Ann Gallenson et al (Gallenson et al, 2002)     
   .       
,
       
.
http://epublishing.ekt.gr | e-Publisher: EKT | Downloaded at 29/06/2016 17:16:51 |
6th International Conference in Open & Distance Learning - November 2011, Loutraki, Greece - PROCEEDINGS
SECTION A: theoretical papers, original research and scientific articles 91
  Macromedia MX
         
       
        
 
       
    ,
       
.
           
         
   
       
 




         
        
         ,
         
         
  
 
3.         

  
      
      
       
 ,        . 
http://epublishing.ekt.gr | e-Publisher: EKT | Downloaded at 29/06/2016 17:16:51 |
6th International Conference in Open & Distance Learning - November 2011, Loutraki, Greece - PROCEEDINGS
SECTION A: theoretical papers, original research and scientific articles 92
        
   
         

         


          
       
 
 (Bloom, 1956)
          

3.1  
    
   ,
         
         
       
(Learning Object     Information Object  
Content Object    
         
          
          

.
          
        
        . ,
  James L'Allier (L Allier, 1997),    
-  
    David Wiley (Wiley, 2000),   
  
.      
        
    ,      
,  
  .     
     
M : N).     
         
    
.
3.2   
         
  ( (aggregation level))
reusability)
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6th International Conference in Open & Distance Learning - November 2011, Loutraki, Greece - PROCEEDINGS
SECTION A: theoretical papers, original research and scientific articles 93
             

          
   Lego       
    (Hodgins & Conner, 2000)  
      
        
 Content Model)       
SCORMCisco RIO/RLO, Learnativity
  IEEE LTSC LOM.   2     
     (Balatsoukas, P. et al, 2008).
        
 (Information Objects, Raw Data, Assets) 
    (RLOs, SCOs, lessons)    
         
(Lessons, Modules, Course).
 

        
 .   ,    
    
          
           
        (South
and Monson, 2001)     
           
        
         
 .
         
        . 
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6th International Conference in Open & Distance Learning - November 2011, Loutraki, Greece - PROCEEDINGS
SECTION A: theoretical papers, original research and scientific articles 94
         
       ,  
          
           
.
3.3  
          

        
          
         
          
     
         
      
  
 
         
,  ..
3.4 
       metadata 
  
    ,  
.       
          
        

; 
    National Information Standards Organization
(NISO, 2004)       
          
   .    
(educational metadata)      
         
         . 
        
       
        
 .
       
   metadata standards)  
       
    
        IEEE Learning
Object Metadata   Dublin Core      
(application profile)     Erik Duval et al (Duval et al, 2002)
         
   
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6th International Conference in Open & Distance Learning - November 2011, Loutraki, Greece - PROCEEDINGS
SECTION A: theoretical papers, original research and scientific articles 95
        
       Dublin Core  
IEEE Learning Object Metadata     
       
(digital repositories)     (learning management
systems).
 Dublin Core Metadata Initiative (DCMI),     
       
      (DCMI, 2008).  
Dublin Core      simple   
(qualified). Dublin Core  
        
   Format    
 Dublin Core      
       (qualifiers 
, 
         Dublin Core 
         
        
       
IEEE Learning Object Metadata.
 IEEE Learning Object Metadata (LOM)      
  learning material    (learning
resources)  .  LOM      
         
      LOM  
        
         
  elements)       
(categories) 
    LOM       
     -  
    
         
 
4. 

        
        
        
         Java  
 .       ,
           
       
         
       
IEEE LOM, DCMI,
AICC LOM  
        
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SECTION A: theoretical papers, original research and scientific articles 96
     .   


: if
: 
: 
: 
: 
: 
if, else
:
  
        

      
switch if-else
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SECTION A: theoretical papers, original research and scientific articles 97
2
:       

: 


: 

:     

:
   
.
       
.
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6th International Conference in Open & Distance Learning - November 2011, Loutraki, Greece - PROCEEDINGS
SECTION A: theoretical papers, original research and scientific articles 98
3
: 





Abstraction
:

       
       
        
     
      
        
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         
  (information objects)       
          
         
   

5. 
   
        
,        
      

       
   learning path)      
         
         .
         
       
        .  
       -  
         
          
   .
6. 
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SECTION A: theoretical papers, original research and scientific articles 100
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Καθώς ο 21ος αιώνας μάς φέρνει αντιμέτωπους με ραγδαίες και ουσιώδεις αλλαγές σε κοινωνικό, οικονομικό και πολιτισμικό επίπεδο, η εκπαίδευση επαναπροσδιορίζει τον ρόλο της και ακολουθεί τις εξελίξεις και τις προκλήσεις των καιρών. Στην παρούσα μελέτη αναζητούνται και αναλύονται, με τη βοήθεια του επεξηγηματικού ερευνητικού σχεδιασμού, οι στάσεις των εκπαιδευτικών Πρωτοβάθμιας Εκπαίδευσης που διδάσκουν Φυσικές Επιστήμες (ΦΕ) ως προς τη χρήση Ψηφιακών Μαθησιακών Αντικειμένων (ΨΜΑ), δηλαδή αυτόνομων και επαναχρησιμοποιήσιμων μονάδων ψηφιακού υλικού που μπορούν να αξιοποιηθούν για τη διδασκαλία και τη μάθηση. Καταδεικνύεται, μέσω ποσοτικών αναλύσεων, ο σημαντικός ρόλος της επιμόρφωσης Β’ επιπέδου και της τάξης διδασκαλίας των εκπαιδευτικών στη διαμόρφωση θετικών στάσεων απέναντι στα ΨΜΑ για τις Φυσικές Επιστήμες, ενώ επιχειρείται η ανάλυση της γενικευμένης άρνησης των εκπαιδευτικών απέναντι στο εθνικό αποθετήριο ψηφιακού υλικού, Φωτόδεντρο, ακολουθώντας ποιοτική μεθοδολογία. Όπως διαφαίνεται από τις απαντήσεις των εκπαιδευτικών η άρνηση χρήσης του Φωτόδεντρου οφείλεται σε έλλειψη διδακτικού χρόνου για υλοποίηση εναλλακτικών μορφών διδασκαλίας εμπλουτισμένων με ΨΜΑ, καθώς και στη δαιδαλώδη μορφή του αποθετηρίου το οποίο αποθαρρύνει μη έμπειρους χρήστες. Επιπλέον, διατυπώνονται απόψεις για μη ικανοποιητικά τεχνικά χαρακτηριστικά των ΨΜΑ, μη λειτουργική ταξινόμησή τους, καθώς και για ασυμβατότητα στόχων δημιουργών και χρηστών. Επίσης, ως αποθαρρυντικός παράγοντας χρήσης του Φωτόδεντρου, αναφέρονται οι σημαντικές ελλείψεις σε τεχνολογικό εξοπλισμό των σχολικών μονάδων, γεγονός που αποτρέπει από την ενασχόληση με ψηφιακά μέσα διδασκαλίας. Επιπρόσθετα, επισημαίνεται η αναγκαιότητα για περαιτέρω διερεύνηση των στάσεων των εκπαιδευτικών απέναντι στα ΨΜΑ με στόχο, πάντα, τη βελτίωση της ποιότητας της παρεχόμενης εκπαίδευσης.
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Student support in higher education is an important research field with many aspects and implications. The concept of support in distance education is not new (already mentioned by Wood, Bruner & Ross since 1976), as are many universities internationally that have introduced techniques and modes of support at organizational and pedagogical level. On the other hand, the use of Information and Communication Technologies (ICTs) during both at the organizational and learning processes is not a simple or one-dimensional process. This article, which is the result of collaborative student work in the HPA1 Section of the Ηellenic Open University Thematic Module (ECD65) of the Hellenic Open University, first attempts to explore the concept and parameters of distance support for students. In the next section, we attempt to link distance student support with ICT and provide some illustrative but typical examples of distance learning support services internationally. The conclusions attempt to evaluate the use of ICT in distance learning student support system.
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Instructional System Development (ISD) is a set of procedures for systematically designing and developing instruction. The development of contents for e-Learning can well benefit from the ISD approach. However, we need to revisit the traditional ISD in order to incorporate the Learning Object (LO) paradigm. LOs are self-contained chunks of online content, which can be reusable and interoperable. In this work, we propose a methodology to design e-learning contents based on the ISD and LO technologies. We also suggest the use of learning theories principles in the chunking and sequencing of LOs in e-Learning modules. The methodology is currently being tested by K-12 teachers from public schools as well as instructional designers from private companies in Brazil. Resumo: Instructional System Development (ISD) é um conjunto de procedimentos para estruturar e desenvolver sistematicamente o ensino. O desenvolvimento de conteúdos para e-learning pode se beneficiar da abordagem ISD. Entretanto, é preciso revisitar a abordagem ISD tradicional de forma a poder se incorporar o paradigma de Learning Object (LO). LOs são porções de conteúdo online autocontidas, que são reusáveis e interoperáveis. Neste trabalho nós propomos uma metodologia para projetar conteúdos de e-learning com base nas tecnologias de ISD e LO. Nós também sugerimos o uso de princípois de teorias de aprendizado no particionamento e sequenciamento de LOs e módulos e-learning. A metodologia está atualimente sendo testada por professores de ensino médio e fundamental de escolas públicas bem como projetistas instrucionais de empresas privadas brasileiras. Palavras-chave: Educação baseada na web, objeto de aprendizado, Projeto de Sistemas Instrucionais, ADDIE.
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The structure and composite nature of a learning object is still open to interpretation. Although several theoretical studies advocate integrated approaches to the structure and aggregation level of learning objects, in practice, many content specifications, such as SCORM, IMS Content Packaging, and course authoring tools, do not explicitly state the aggregation level or granularity of learning content. The aim of this paper is to review, compare, and amalgamate different content models for learning objects into a single and coherent learning content hierarchy. To fulfil the objectives of this study, a substantive body of literature was reviewed and analysed to identify current issues in the field of learning objects, and more specifically, learning object content models.
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The term Learning Object, first popularized by Wayne Hodgins in 1994 when he named the CedMA working group "Learning Architectures, APIs and Learning Objects", has become the Holy Grail of content creation and aggregation in the computer-mediated learning field. The terms Learning Objects (LOs) and Reusable Learning Objects are frequently employed in uncritical ways, thereby reducing them to mere slogans. The serious lack of conceptual clarity and reflection is evident in the multitude of definitions and uses of LOs. The objectives of this paper are to assess current definitions of the term Learning Object, to articulate the foundational principles for developing a concept of LOs, and to provide a methodology and broad set of guidelines for creating LOs.
Frame of Reference: NETg's Map to the Products, Their Structure and Core Beliefs
  • J J L'allier
L'Allier, J. J. (1997). Frame of Reference: NETg's Map to the Products, Their Structure and Core Beliefs. NETg. Retrieved, from http://web.archive.org/web/20020615192443/www.netg.com/research/whitepapers/frameref.as p Metros, S. E. (2005, July/August). Learning Objects: A Rose by Any Other Name.... EDUCAUSE Review, 40(4), pp. 12-13
(Learning) Objects of Desire: Promise and Practicality. Learning Circuits. Retrieved from http
  • L Mortimer
Mortimer, L. (2002). (Learning) Objects of Desire: Promise and Practicality. Learning Circuits. Retrieved from http://www.astd.org/LC/2002/0402_mortimer.htm NISO (2004).
Sharable Content Object Reference Model (SCORM): Retrieved from http://www.adlnet.gov/Technologies/scorm/default Learning Objects Update: Review and Critical Approach to Content Aggregation
  • P Aspx Balatsoukas
  • A Morris
  • A O 'brien
Advanced Distributed Learning (ADL) (2004). Sharable Content Object Reference Model (SCORM): Retrieved from http://www.adlnet.gov/Technologies/scorm/default.aspx Balatsoukas, P., Morris, A., O'Brien, A.: Learning Objects Update: Review and Critical Approach to Content Aggregation. Educational Technology & Society (2008), 11(2), pp. 119-130
Use and Abuse of Reusable Learning Objects A University-Wide System for Creating, Capturing, and Delivering Learning Objects The Instructional Use of Learning Objects
  • J B South
  • D W Monson
Understanding Metadata. Retrieved from http://www.niso.org/publications/press/UnderstandingMetadata.pdf Polsani, P. R. (2003). Use and Abuse of Reusable Learning Objects. Journal of Digital Information, 3(4) South, J. B., & Monson, D. W. (2001). A University-Wide System for Creating, Capturing, and Delivering Learning Objects. In D. Wiley (Ed.), The Instructional Use of Learning Objects. Retrieved from, http://www.reusability.org/read/chapters/south.doc