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CSCL SIG 2004

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Let us take the codon 'GTA' as an example. ... They must manage to read the codon table and identify the right amino acid, and ... – PowerPoint PPT presentation

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Title: CSCL SIG 2004


1
CSCL SIG 2004
Ingeborg Krange Sten Ludvigsen
InterMediaUniversity of Oslo
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CSCL SIG 2004
  • Title
  • Two Interaction Patterns Concerning the Use of
    Scientific Concepts in a Collaborative Virtual
    Environment
  • The environment Mission Queen Maud Land - 3D
    learning environment distributed talk (not
    text)

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CSCL SIG 2004
  • Design
  • Actor actor objects
  • Actor actor
  • Actor object
  • Objects- objects

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CSCL SIG 2004
  • Methodology
  • Design with teachers
  • Video
  • Interviews

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CSCL SIG 2004
  • The task
  • the students are going to find out how to use the
    codon table. The source for this is found on the
    web .
  • control if each of the codons in the DNA sequence
    refers to the right amino acid in the chain.
  • translate a DNA sequence of codons into a chain
    of 51 amino acids, actually build the insulin
    protein.
  • When the students enter the networked 3D learning
    environment, three amino acids are already been
    placed in the chain. This implies that they have
    to handle at least two aspects to solve the task.
    They must manage to read the codon table and
    identify the right amino acid, and then they have
    to find it in the 3D model and place it in the
    right order of the chain. If they try to place a
    wrong amino acid on the chain, it will
    immediately fall off.

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CSCL SIG 2004
  • Research questions
  • what characterises students use of scientific
    concepts?
  • How do students together with their teacher
    interact while using scientific concepts to solve
    a task?
  • How do they during problem solving manage to
    consider these concepts?
  • How do these social interactions unfold according
    to the specific characteristics of the learning
    resources in the environment?

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CSCL SIG 2004
  • Theoretical framework
  • Scientific concepts
  • generality
  • systematic organization
  • conscious awareness
  • voluntary control

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CSCL SIG 2004
  • Accountability
  • Inscription
  • Positioning
  • What counts as knowledge?

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CSCL SIG 2004
  • 3 D environments
  • Simulations
  • Visualization
  • Modeling

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CSCL SIG 2004
  • Tasks that are well defined within highly
    complex/structured knowledge domains and learning
    environments are not given (Berquist Säljö,
    2004).
  • Students that see the same phenomenon make
    radically different interpretations of it (Roth,
    2000 Winn Windschitl, 2001)
  • Students need to construct a common an adequate
    understanding of the task (Rasmussen, Krange
    Ludvigsen, in press).

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CSCL SIG 2004
  • The knowledge domain
  • conceptually and procedural oriented
  • The 3D model the knowledge inscribed, the
    knowledge domain and the social interactions
    developed in situ
  • all function as driving forces during the
    learning processes but that their domination
    might vary over time.

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Example 1 Procedural oriented use of scientific
concepts
  • Elton Mission Use the codon table and control
    that the DNA sequence and in the two figures
    below, below corresponds. Elton reads on the web.
  • Cecilia I dont understand, I.
  • Thomas Okay. Can somebody explain to Cecilia how
    you read the table here now? ATG for example, how
    do you read that one?
  • Simon Eh, it starts
  • Mary On GTAC
  • Simon In the heart of the circle.
  • Cecilia Yes.
  • Simon You get one of the letters in that order
    and then if we say it is an A. And then we
    continue on that, on that quarter where A is.
    Simon refers to Figure 1 on the web.
  • Cecilia Mm.
  • Simon So the four outside there then one come
    further and checks what letter that is, so. Simon
    refers to Figure 1 on the web.
  • Cecilia That is T, I mean.
  • Simon If it is T, then you check the four after
    that. And if that for example is G, then it is
    Met or Ile. Simon refers to Figure 1 on the web.
  • Cecilia Oh, yes. Yes, but, yes, yes, then I have
    got it.

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Example 2 Conceptually oriented use of
scientific concepts
  • Pat So then you can do the same, CCC. Then you
    have CCC.
  • Cornelia Then it is Pro
  • Pat Pro, yes. Then you can do it with CAC
  • Cornelia CAC, then it is His. Now I have got it.
  • Pat Yeah, you got it now?
  • Cornelia Yes, but I dont understand what it is
    what is it?
  • Pat It is the genetic code.
  • Thomas It is the code. If you are going to build
    something genetic, then it is the code, the
    recipe for how you should do it what protein
    that should chain together.
  • Fredric build insulin. You will find some
    amino acids already put on the right place. Start
    to build at the flicking part. Fredric reads
    mission 3 on the web page
  • Cornelia Thomas, are you there?
  • Thomas Yes.
  • Cornelia Can you just say what is a gene?
  • Thomas A gene? It is a kind of building block in
    you body or a code for how
  • Cornelia Is, like GA, no, GC a gene?
  • Teacher No, thats a protein.

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CSCL SIG 2004
  • Conclusions
  • The students gradually understand the task even
    in the highly structured learning environment.
    This implies that students goal is shaped as part
    of clarifying the task.
  • The process of understanding a task is often
    complex and not transparent

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CSCL SIG 2004
  • Solving the task practical management
  • Institutional aspects

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CSCL SIG 2004
  • Students orientation
  • Accountability and positioning
  • Procedural
  • Procedural and conceptual

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CSCL SIG 2004
  • Systematic orientation
  • Generality
  • Scientific concepts

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CSCL SIG 2004
  • Acknowledgements for financial support
  • InterMedia, University of Oslo,
  • Telenor Communications RD department,
  • Network for IT-Research and Competence in
    Education (ITU)
  • CMC, University of Oslo
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