Transcript Slide 1
LEARNING OBJECT REPOSITORIES
CHALLENGING GOOGLE – THE
USERS’ POINT OF VIEW
K. Clements1, À. Gras-Velázquez2,
J. Pawlowski1
1University
of Jyväskylä (Finland)
2European Schoolnet (Brussels)
[email protected],
[email protected],
[email protected]
Contents of this presentation:
• Definitions
• Motivation for the
study
• Describing the
empirical study
• Methodology
• Findings
• Conclusions
• Questions?
Definitions
• Learning object (LO)
▫ “Any digital entity that may be used for
learning, education or training”
• Learning object Repositories(LORs)
▫ “Collections of learning objects accessible
to users via network without prior
knowledge of the collections”
• Open Educational Resource (OER)
▫ Learning object freely (without cost)
available to the end user
Learning Resource Exchange LRE
Motivation for the study
• Repositories are not used up to their full
potential – why?
• In a world where Google has become the ‘de
facto’ for searching information – why would
teachers use repositories instead?
• Are there advantages in using repositories?
• Past research has recognized a serious concern
for quality of searched resources retrieved by a
search engine such as Google
Empirical study Methodology
• Controlled experiment with
teachers in a workshop setting
• N=46 teachers carried out
experiments on learning
objects discovery and reuse for
preparing lesson plans based
on the resources
• The data was gathered by
surveys
Who were the
teachers?
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40% male, 60% female
Science, Maths and ICT teachers
Average 40 years old with
Over 10 year of teaching experience
Teaching 6-21 year old students
80% had advanced ICT skills
Pilot around Europe
46 Teachers from
Belgium
Portugal
Lithuania
Romania
In the experiment, teachers were
asked to create a lesson plan
including:
•
•
•
•
1 image
1 simulation
1 interactive simulation
1 animation to be used as an activity/exercise by
the students
• 70% were using LRE for the task,
• 30% were using Google for the task
Learning Resource Exhange
• 39 000 Learning
objects,
• 90 000 Learning
assets
• from many different
countries and
providers, including
16 Ministries of
Education
The basic test criteria were:
• Time taken to find the resource in a portal (the
less the better)
• Number of clicks to start obtaining results (the
less the better)
• Number of resources in correct language (the
more the better)
Findings: Previous searching of
OER
Discovery of resources
• Teachers who had
experience on LRE
before the beginning
of the tests found
resources using the
LRE quicker than
with Google.
=> Knowing how to
search with LRE
saves time for
teachers
Finding doesn’t guarantee quality
• On the other hand,
being able to find the
resources quicker did
not translate into
actually being
convinced about the
resources quality,
neither in Google nor
the LRE.
LRE functionalities that the
teachers found beneficial
• teachers found less irrelevant content to the topic
they were search than when using Google. This means
that when teachers use Google, they cannot know if
they’ll find educational resources, but resources might be
for other purposes like for economical use.
• The teachers can search directly by ‘topics’, which
was a functionality they appreciated when making their
lesson plans.
• Teachers found resources to match their
descriptions better when using LRE.
• Teachers could easier locate resources with the
appropriate age group of their pupils, where are with
Google, the age that the resources are suitable for is
often random.
Teachers recognise the following:
• 1) The repository must contain high
quality resources,
• 2) The repository must be technically
up to date working (easy to use) and
• 3) There needs to be a critical mass of
content in which to search for
resources.
Conclusions
• However, repository functionalities are
not attractive enough to challenge search
engines’ power to reach millions of
resources with one search.
• The only way to really challenge search
engines for users’ attention, repositories
need to provide highly relevant content
which the users can trust to be high
quality.
Thank you! Any questions?
Send feedback/ask
more:
Kati Clements
[email protected]
Mattilanniemi 2, 40014
Jyväskylän yliopisto,
Finland
Tel. +358505631805