Calculators, graphs, gestures and the production of meaning
In this paper we report an analysis of a teaching sequence in which Grade 11 students were asked to produce some graphs corresponding to the relationship between time and distance of a cylinder moving up and down an inclined plane. The students were also asked to carry out the experience using a TI 83+ graphic calculator equipped with a sensor, and to discuss and explain the differences between their own graphs and the ones obtained with the calculator. We analyze the students' processes of mea
La natura della mediazione offerta dai sistemi basati su micromondi all’apprendimento della matema
Questo lavoro analizza il ruolo che ambienti basati sull’uso del calcolatore, ed in particolare i micromondi, possono assumere nelle attività di insegnamento e apprendimento di conoscenze matematiche.
Il lavoro parte dallo studio di alcuni risultati significativi che si sono avuti in questo campo a livello internazionale. Tale studio viene utilizzato come quadro di riferimento per situare e analizzare una ricerca specifica che abbiamo svolto in questo settore.
Tale ricerca riguarda la proge
The Grid Shared Desktop: a bootstrapping environment for collaboration
The paradigm shift from an information sharing infrastructure (i.e., the Web) to a resource sharing infrastructure (i.e., the Grid) has boosted the development of a new generation of online services. In particular, Grid services are stateful, dynamic and operate in a secure environment. Therefore they offer capabilities that are essential to remote collaboration. In this paper, we tackle the problem of bootstrapping and supporting a collaborative environment over a Grid infrastructure. As we tar
The Grid Shared Desktop for CSCL
The Grid Shared Desktop (GSD) is a collaborative environment that provides a multidimensional humans-to-machine-to-humans interface by the means of multiples cleverly intricated desktops. The GSD is a platform independent solution that benefits of the intrinsic advantages of the Grid technology such as scalability and security. In order to verify that our GSD solution meets CSCL requirements, we have conducted experiments in the context of the ELeGI project. As part of the project use cases, the
Mobile Notes: Mobile Devices in Creative Discussions
The trendy notion of “mobile learning” has different connotations: On the one hand, it can be understood as “learning on the move” – often referred to as “learning any time anywhere”. Of course this interpretation relies on specific kinds of technological enabling, but the definition aims at the general setting of learning activities. Particularly, it includes informal learning settings (cf. [1]). A second interpretation sees mobile learning somewhat more pragmatically as learning
On-line learning networks: Framework and scenarios
The idea of using the internet as a platform to mediate social interactions and learning at different levels has progressively affirming itself, and this has given rise to a huge number of spontaneous and planned collectives, which are often described as on-line learning networks. On-line learning networks create value through the combination of content and people's knowledge. They can vary widely in the strength and permanence of their connections and the resources necessary to maintain them. A
Computational Mathetics: Towards a Science of Learning Systems Design
The aim of this report is simply to help put the design of computer-based systems to support learning on a more scientific footing. The aim is simply stated, but its achievement is more difficult. For one thing, it is not at all obvious what "more scientific" means in this context. However, it is essential for AI-ED research to take better account of the concepts of 'situation', 'context', 'community', 'discourse', 'social learning', and so on, but these terms need to be defined, not used as man
Randomness and LEGO robots
This paper reports on a long term experiment concerning the introduction of 7th grade pupils to the concept of randomness. Pupils are involved in activities with Lego robots, and in the joint enterprise of writing an Encyclopaedia. The main lines of the experiment are provided, together with experimental data, highlighting how some specific elements of the chosen educational approach influenced the evolution of pupils' mastery of the concept of randomness.
Collaborative learning aspects in VSE
The paper would suggest a pedagogical model for modelling Virtual Scientific Experiments (VSE) starting from the Theory of Didactics Situations and taking advantages from the recent studies on collaborative learning.
The possibilities given by the new technologies, and in particular by the GRID, seems to be particulary interesting for the sharing of complex applications such as VSE.
An innovative teaching and learning environment for school mathematics
The paper presents the main characteristics, the background reference, and educational aims of an innovative teaching and learning environment designed and implemented for promoting arithmetic problems solving skills in children of compulsory school.
The project is partially funded by the European Community Research and Development Project ITALES "Innovative Teaching and Learning Environments for Schools" (IST 2000-23356).
The research addresses a sector (that of arithmetic problem solving) whi
The use case specification of actions in the goal oriented knowledge based learning environment
The proposed goal oriented knowledge acquisition and assessment are based on the flexible educational model and allows to implement an adaptive control of the enhanced learning process according to the requirements of student's knowledge level, his state of cognition and subject learning history.
The enhanced learner knowledge model specifies how the cognition state of the user will be achieved step by step. The use case actions definition is a starting point of the specification that depends o
E-Assessment using Latent Semantic Analysis
E-assessment is an important component of e-learning and e-qualification. Formative and summative assessment serve different purposes and both types of evaluation are critical to the pedagogical process.
While students are studying, practicing, working, or revising, formative assessment provides direction, focus and guidance. Summative assessment provides the means to evaluate a learner's achievement and communicate that achievement to interested parties.
Latent Semantic Analysis (LSA) is a st
Design Considerations for an ELeGI Portal
ELeGI, the European Learning Grid Infrastructure, has the ambitious goal of fostering effective learning and knowledge construction through the dynamic provision of service-based contextualised and personalised learning environments.
The success of this venture will depend to a considerable extent on the usability of such environments, and their usability in turn will depend on a successful strategy for the dynamic integration and maintenance of sets of services.
The concept of the portal is t
The Challenge of Change: Reducing Conflict in Implementing e-Learning
This paper calls for the design of the European Grid for Learning to take note of important issues which have arisen in previous e-learning cycles in the UK. In particular, low take-up of products and services by lecturers has been explained in terms of techno-fear, or ignorance of e-learning potential.
These claims are unsubstantiated. Other explanations are possible for the observed resistance of the educational specialist to the use of educational technology. Rather than ignore possible area
A Learning Grid for the multichallenge school ECP
The aim of this presentation is to try to define the requirements of a European Learning Grid that would fit best with the challenges and today and future practices of Ecole Centrale Paris.
In a first part, after a brief presentation of Ecole Centrale Paris, we describe the actual challenges today practices and the interest of an e-learning GRID. In a second part we describe some potential cases of such system and the associated requirements.
Towards Collaborative Learning via Shared Artefacts over the Grid
The Web is the most pervasive collaborative technology in widespread use today; and its use to support eLearning has been highly successful.
There are many web-based Virtual Learning Environments such as WebCT, FirstClass, and BlackBoard as well as associated web-based Managed Learning Environments.
In the future, the Grid promises to provide an extremely powerful infrastructure allowing both learners and teachers to collaborate in various learning contexts and to share learning materials, lea
Adaptive eLearning and the Learning GRID
One important aim of LeGE-WG is the integration of new eLearning methodologies into Learning Grid technology. A central issue in these new eLearning methodologies is the concept of individualised and personalised learning to be realised by adaptive tutoring systems.
The adaptivity of such systems goes far beyond adapting to the users' preferences with respect to the user interface; in co-operation between computer science, psychology, and pedagogy, systems adapting, e.g., to the individual lear
Resource-adaptive Selection of Strategies in Learning from Worked-Out Examples
Most tasks can be pursued by using different strategies (Logan, 1985; Reder & Schunn, 1998). In this paper we focus on strategies of learning from worked-out examples. Within a resourceoriented framework these different strategies can be classified according to their costs and benefits. These features may determine which strategy will be selected for accomplishing a task in situations with certain resource limitations. We investigate specific hypotheses about strategic adaptations to resource li
An environment helping teachers to track students' competencies
Our research concerns teaching assistant systems by treating the question of reuse and exploitation of learners’ profiles by the teacher. We propose also
that other actors of the learning situation, learners and institutions, benefit from the exploitation of these profiles. In PERLEA project, we want from one hand to model the students’ tracking process, and on the other hand to propose an environment giving
software tools to help actors to reuse and exploit profiles of all disciplines, what
Categorization of tools and pedagogical approaches related to collaborative learning and CoPs
This deliverable presents a categorization of tools and a clarification of the notion of "scenario". It presents some existing taxonomies. The tools inventory and the proposed categorization focus on a user perspective. It takes into account data collected from CoPs, from PALETTE's partners and from the existing literature.,PALETTE deliverable - report number D.PAR.02 - 155 pages
