Cowos: A Model of Collective Work Situations to Support Modelling and Simulation Based Approaches of
This paper describes an operational model of collective work situations. This model is rooted in the CHAT theory. It allows creating multi-agent simulations where the agents behaviour is defined in terms that make salient organization issues, and allows building learning situations that focus on making students consider explicitly these issues.
Structural Awareness for Collaborative Learning Environments
In this paper we propose a peer-to-peer support approach that we call structural awareness support. The structural awareness aims to support the communication that takes place in virtual learning communities. Its emphasis is on revealing the group structure to its participants in order to promote collaborative interactions. This support has been implemented on a forum type tool called Mailgroup. It has been tested twice in different contexts, obtaining initial feedback of its pertinence accordin
Directions to Acknowledge Learners Self-organization in CSCL Macro-scripts
In this article we present a conceptual analysis of the notion of learners self-organization in CSCL macro-scripts. We highlight that taking into account self-organization as an emergent feature of activity requires considering issues such as conceptual and technological tools to support learners self-organization, maintenance of coherence between the script pedagogical objective and the emergent organization and between the technological setting and the emergent activity.
Dialogue in context, towards a referential approach in collective learning
In this article, we present research in the making of a collective work environment within the framework of a distance education course. We base our theoretical and methodological standpoints on examples of dialogical discourses recorded within the framework of this CSCL system called Symba. In fact, the results of previous research lead us to rethink our vision of the study of collaborative moments between participants in a computer-supported human learning environment that proposes several com
Reflections on Success: A retrospective of the mLearn conference series 2002-2005
mLearn is now in its fifth year. Although mobile learning has a much longer history, the
inauguration of a conference for learning in the mobile age marked an important point in its
development. This paper takes a retrospective look at the mLearn conferences from 2002
through to 2005; reflecting on our progress in order to facilitate the transition of mobile learning from a novel research concept into a viable means of providing meaningful learning
opportunities across generations and cultures
Δραστηριότητες Μοντελοποίησης με χρήση Η/Υ στη Βθμια
Η εργασία αυτή επιχειρεί να αναδείξει την επιστημολογική αξία των μοντέλων, το
ρόλο των Η/Υ στη σύγχρονη επιστημονική μοντελοποίηση και τις δυνατότητες διδακτικής
αξιοποίησής τους. Σημειώνεται η έλλειψη σαφούς ανάδειξης της έννοιας του μοντέλου στη
διδασκαλία των θετικώ
The role of guidance in computer-based problem solving for the development of concepts of logic
The effect of two instructional variables, manipulation of objects and guidance, in learning to use the logical connective, conditional, was investigated. Instructions for 72 first- and second year social science students were varied in the computer-based learning environment Tarski's World, designed for teaching first-order logic (Barwise &Etchemendy, 1992). Guidance, which was operationalised by giving the learners problems that guided them to all different types of basic problem situations th
Use of Heuristics to Facilitate Scientific Discovery Learning in a Simulation Learning Environment i
This article describes a study into the role of heuristic support in facilitating discovery learning through simulation-based learning. The study compares the use of two such learning environments in the physics domain of collisions. In one learning environment (implicit heuristics) heuristics are only used to provide the learner with guidance derived from heuristics, without presenting the heuristics themselves; in the other (explicit heuristics) the heuristics themselves are also made explicit
Promoting Self-Directed Learning in Simulation Based Discovery Learning Environments Through Intell
Providing learners with computer-generated feedback on their learning process in simulation-based discovery environments cannot be based on a detailed model of the learning process due to the "open" character of discovery learning. This paper describes a method for generating adaptive feedback for discovery learning based on an "opportunistic" learning model that takes the current hypothesis of the learner and the experiments performed to test this hypothesis as input. The method was applied in
Sequence effects in solving knowledge-rich problems: The ambiguous role of surface similarities
Sequence effects are said to occur whenever the problem solving performance varies as a function of the order in which problems are solved. We present a framework that explain sequence effects as a result of (a) learning during solving a problem and of (b) transferring the learned content on succeeding problems. In two experiments we studied the ambiguous influence of surface similarities among structurally dissimilar knowledge-rich problems on sequence effects. These experiments demonstrate tha
When less is sometimes more: Optimal learning conditions are required for schema acquisition from mu
While it is usually claimed that multiple examples for the illustration of problem categories are a necessary prerequisite for schema acquisition, there is a lack of conclusive empirical evidence supporting this claim. Moreover, there are findings indicating that carefully designed one-example conditions may allow for profitable processes of example comparison as well. In line with this reasoning, we present an experiment that builds up on a series of studies conducted by Quilici and Mayer (1
Using e-mail to support reflective narration
This article presents an exploratory study of e-mail use for reflective narration. Narration is viewed from three perspectives: the narrating act, the narrative statement, and the story. These perspectives are used to characterize the 69 e-mails that were exchanged between 13 groups of children from three primary schools. The findings show that e-mail narration has monologic and dialogic qualities, and leads to cognitive and personal reflections on the learning task. We conclude that e-mail can
Gridcole: a tailorable grid service based system that supports scripted collaborative learning
This paper introduces Gridcole, a new system that can be easily tailored by educators in order to support the realization of scripted collaborative learning situations. To do so, educators can provide a script specifying the sequence of activities to be performed by learners as well as the tools and documents required to support them. Gridcole can then search for these tools in a service-oriented grid in order to integrate them so that they are available for users during the realization of the s
Researching classroom interactions: A methodology for teachers and researchers
Teaching and learning in schools is a complex social process which involves both the teacher and students in distributed knowledge-building activities. Research into this process includes researchers exploring from the outside and teachers exploring from the inside (Bassey, 1995). Jaworski (2003) draws on the work of Wagner (1997) to elaborate a form of research which she calls co-learning, in which research on classroom learning is conducted jointly by outsiders and insiders (p 250). The w
Embedded Training for Complex Information Systems
One approach to providing affordable operator training in the workplace is to augment applications with intelligent embedded training systems (ETS). Intelligent embedded training is highly interactive: trainees practice realistic problem-solving tasks on the prime application with guidance and feedback from the training system. This article makes three contributions to the theory and technology of ETS design. First, we describe a framework based on Normanâs "stages of user activity" model for d
The Importance of an Enhanced Problem Representation: On the Role of Elaborations in Physics Problem
This study of physics problem-solving identifies reasoning mechanisms that enable the problem-solver to achieve the transformation to a physics structure of the problem situation. Elaboration is explored as a mechanism in fulfilling this transformation by providing beginning problem-solvers with elaborations that they failed to infer. A card sorting experiment was employed in which two versions of physics problem descriptions had to be sorted. A comparison is made between proficient and weak stu
Situational knowledge in physics: The case of electrodynamics
Major difficulties for a novice physics problem solver are how to interpret new problems and how to combine information given in the problem with information already known. A domain expert, by contrast, has the knowledge to take full advantage of problem features at a glance. It takes a long period of practice to acquire such situational knowledge, and it would be desirable for this to be taught more effectively. As a first step, this requires information on how situational knowledge differs acr
Physics learning with a computer Algebra systems: Towards a learning environment that promotes enhan
To become proficient problem-solvers, physics students need to form a coherent and flexible understanding of problem situations they are confronted with. This is important both for solving problems and for interpreting solutions. Still, many students have only a limited representation of the problems they are working on. Therefore, we devised an instructional approach to promote students' understanding of these problems, and to support them in forming associations between problem features and so
Learning physics with a computer algebra system
To become proficient problem-solvers, physics students need to form a coherent and flexible understanding of problem situations with which they are confronted. Still, many students have only a limited representation of the problems on which they are working. Therefore, an instructional approach was devised to promote students' understanding of these problems and to support them in forming associations between problem features and solution methods. The approach was based on using the computer alg
Progressive computer-supported modelling as a learner activity: A tool for understanding
Recently, computer modelling has been added as a new topic in final examination programmes for physics and mathematics in the Netherlands. It involves constructing, running, evaluating, and extending simulation models. Currently, we are developing curriculum materials to support this new topic. In the course of our work, we became convinced that computer-supported modelling should be an integrated part of the curriculum from early on. Constructing a model involves identifying components, propert
