L'Algebrista: un manipolatore simbolico elementare
Presentazione di un nuovo software didattico per l’introduzione degli allievi all’algebra. L’idea di base è quella di costruire un micromondo nel quale le attività di manipolazione simbolica corrispondano alle attività di deduzione all’interno di una teoria. L’ipotesi didattica vede tale micromondo come possibile mediatore del significato di teoria ed in particolare di dimostrazione.
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
In questo articolo prenderemo in esame il sistema ARI-LAB che abbiamo realizzato per sostenere gli alunni nello sviluppo di capacità nel problem solving aritmetico e cercheremo di descrivere alcune caratteristiche che questo software rende disponibile con il fine di valutarne le potenzialità sul terreno didattico. Nel fare ciò assumeremo due riferimenti: da una parte l'analisi della natura del sapere coinvolto nel problem solving aritmetico, descritta nella prima parte di questo lavoro, dall'
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
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.
TELMA Cross Experiment Guidelines
This document contains the guidelines developed by members of TELMA as a means for planning, conducting, and analysing a cross experiment aimed at contributing to the construction of a shared research perspective among TELMA teams . This is the product of the PhD students and young researchers that brought forward the whole activity. The actual experimental phase was proceeded by a reflective phase in which an agreement was achieved on what research questions to address during the experiment. O
Multimedia and the learner's experience of narrative
This paper reports on research findings which show that the narrative structure of multimedia programs, or sometimes the lack of it, affects learners' comprehension, often adversely [1,2]. It also reports on initial findings from our current research which aims to develop a theoretical understanding of the forms and functions of narrative in interactive media, based on empirical research, and capable of informing instructional design.
First set of case studies in Narrative Learning Environments
This research report describes and analyses a set of case studies of Narrative Learning Environments. It also provides a summary with the classification of each application according to four dimensions (knowledge domain, role of the user towards the story, learning approach and technological means).,Research report - Report number D13.3.3
Ontology based user modeling for personalization of grid learning services
The paper shows how semantic grid learning services will support a user-centered, personalized, contextualized and experiential based approach for ubiquitous learning. In order to allow personalized learning processes, we need to study and define methodologies for representing, through adequate knowledge structures, such as ontologies, both the area (the learning context) and the learner. In this paper we will focus on the role of personalized ontologies for a new generation of intelligent serv
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
Open Learning Service Scenarios on GRIDs
The position paper focuses on the concepts of Service Elicitation and Evaluation/Exploitation Scenarios (SEES) and, in particular, on experimental protocols for justifying, motivating, implementing and exploiting Learning GRID's services for very large numbers of potential users.
Shaping e-Learning Applications for a Service Oriented GriD
The paper discusses technical issues related to establishment of e-learning services on a grid. The XML based technology for implementation of e_learning application in the form of web service is analyzed from the perspective of making an application grid-aware. The special e_learning repository service is proposed as a technique for coordinated use of distributed e_learning resources through the access and invocation of web services.
Literature Review of E-assessment
The authors of this review provide a compelling argument for the central role of assessment in shaping educational practice. They outline the challenges and opportunities posed by the changing global world around us, and the potential role of technologies in our assessment practices. Both optimistic and practical, the review summarises existing research and emergent practice, and provides a blueprint for thinking about the risks and potential that awaits us in this area.,A NESTA Futurelab Resear
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
Analyse de fichiers de traces d'étudiants : aspects didactiques
Users of a learning platforms are usually required to log in, that provides a great deal of data. The general question studied here is: how to exploit this data to help the different actors involved? At first let us introduce the platform and the experiments we conducted. Then we use a didactic model to produce a qualitative analysis from the quantitative data collected. A simple exercise classification emerges from the construction of two indicators. It is consistent with the different experim
Domain Modelling To Support Educational Web-based
This paper describes an approach to web-based authoring of educational material. We define a model for the class of subjects of our interest (those including both theoretical and practical issues). From this model, specific content outlines can be derived as subclasses and then instanced into actual domains. The last step consists in generating interactive documents, which use the instanced domain. Students can explore these documents through a web browser. Thus, an interactive learning scenario
Scripting argumentative knowledge construction in computer-supported learning environments
Computer-supported collaborative learning (CSCL) environments may encourage learners to engage in argumentative knowledge construction. Argumentative knowledge construction means that learners work together to elaborate on concepts by constructing arguments and counterarguments. This is achieved through discourse with the goal of acquiring knowledge within a specific domain. However, learners may encounter problems relating to one of three dimensions of argumentative knowledge construction. Firs
Informaticiens et didacticiens peuvent-ils
travailler ensemble ?
Au cours du développement de lEIAH APLUSIX, il y a eu de nombreuses occasions dun travail partagé entre informaticiens et didacticiens. Quelques-unes sont décrites succinctement, illustrant différentes formes de collaborations selon des schémas producteur consommateur. Lors de la mise en place de patrons dexercices et dune carte de tests, une coopération plus approfondie a été possible, tout en respectant les disciplines de chacun. Cette mise en place de patrons dexercices et d
First version of Amaya offering a template mechanism
This deliverable is the first release of the Amaya authoring tool that supports template-driven editing based on the XTiger-language. Its purpose is to demonstrate the main features of this nex editing mode.,PALETTE deliverable - report number D.INF.02
Using online role play to teach internet safety awareness
This paper reports on an evaluation of Net-Detectives, a creative online role play activity aimed at 9–12 year olds. Net-Detectives forms part of Kidsmart, an Internet awareness programme aimed at school children. It was evaluated through a multiple method data collection using questionnaire surveys, follow up telephone interviews with teachers and observation in use in three UK schools during the summer term of 2003. All sources of data collected agreed that a number of benefits arise from p