Sorry, didn't identify "[1]"-- http://dublincore.org/educationwiki/Model
Stuart
-----Original Message-----
From: Stuart Sutton
Sent: Thursday, January 14, 2010 5:54 AM
To: 'Mikael Nilsson'; [log in to unmask]
Subject: RE: DC-Ed Application Profile: Defining resource classes for the AP
Mikael, I am assuming that both you and Mike are discussing model Ver.3a (and not Ver.3b) at [1]. Correct? Model Ver.3a distinguishes between a LearningResource and EducationalActivityDocumentation and Ver.3b conflates these two entities. Would your assessment set out here (and posed as a question in Mike's email) be the same if you were speaking of EducationalActivityDocumentation instead of LearningResource in Ver.3a? In other words, could typical learning time be a property of EducationalActivityDocumentation since the resource (may) document the typical learning time of a specific activity? I say "may" only because EducationalActivityDocumentation can instead document a ConceptualEducationalActivity in the model; and, I assume, given your assessment, that ConceptualEducationalActivity would not have a typical learning time either.
Stuart
-----Original Message-----
From: DCMI Education Community [mailto:[log in to unmask]] On Behalf Of Mikael Nilsson
Sent: Thursday, January 14, 2010 4:10 AM
To: [log in to unmask]
Subject: Re: DC-Ed Application Profile: Defining resource classes for the AP
ons 2010-01-13 klockan 17:01 +0000 skrev Mike Collett:
>
> Is for example a property like typical learning time that of the whole
> EducationalActivityInstance or just the bit that uses the Learning
> Resource?
> If the former then where does the typical learning time for the
> Learning
> Resource go?
The assumption here is that there is no "typical" learning time for a
learning resource, as it depends heavily on how a learning activity
using the resource is designed. The question therefore has no answer in
the proposed model.
If the question is: "what is the typical time of [the part of a larger
activity that involves the resource]?", then the right way would be to
let the larger activity have parts that are activities
(dcterms:hasPart?), and attach the right duration to the right
sub-activity.
This is not always doable. Consider a learning activity (physics lab)
that has a typical duration of 3 hours, and which uses a certain
resource five minutes each hour (say, an animation of a physical
process). What is the typical learning time of that five-minute
animation?
>
> Similarly, is a level that of the "instantiation of an idea for an
> educational activity" or a level of the resource itself?
Do you mean "level" as in "difficulty"? A conceptual activity can have a
difficulty for the relevant audience, but a resource can't really have a
difficulty, IMHO.
>
> Lots of ConceptualEducationalActivities and
> EducationalActivityInstances
> exist in their own right, eg parts of a curriculum or a lecture, and
> their
> properties will be different to those associated with a learning
> resource
> (in a given educational context).
Yes, thinking about activities certainly brings up a whole different set
of properties than just thinking about resources. I think that is a good
thing, and I don't think it means DC-Ed needs to deal with all of them.
>
> Defining properties for these entities seems to be moving way out of
> the
> original scope (that I was thinking of) - that of defining properties
> of a
> resource that may be useful in an educational context that do not yet
> have
> an obvious place.
Well, but if it is agreed that these properties do *not* reflect any
inherent attribute of the resource at all, but of certain activities
designed around the resource, it would be problematic to insist on
assigning them to the resource.
What is the difficulty of "Moby Dick"?
/Mikael
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