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Enhancing tutor in geometry. This method is able to discover the requirements helpful for selecting the didactic strategies it has at its disposal. These requirements are expressed as traits of the pupil design. They are elaborated by evaluating pupil model states recorded when a strategy was efficient and those recorded when the exact same technique was not effective. This comparison is performed by device studying techniques, more precisely by studying ideas from examples. An empirical experiment was carried out in order to evaluate the developed self improving functions and circumstances had been found for five of the 9 didactic methods. However, this new knowledge did not lead to PROTO TEG being more efficient in phrases of pupil overall performance. (in press), Distributing cognition over humans and devices, to seem in: De Corte, Mandl, Glaser Vosniadu, Worldwide Perspectives on the Psychological and Educational Foundations of This chapter considers computer based studying environments from a socio cultural viewpoint. It relates several ideas from this method with style principles and methods specific to studying environments. We propose a metaphor intended to help designers of learning environments to make sense of system attributes within the socio cultural perspective. This metaphor considers the software and the learner as a solitary cognitive system, variably distributed over a human and a machine. This chapter presents a metaphor for designing educational air jordan 5 pas cher computing systems (ECSs) that progressively transfer to the learner an growing quantity of control in the problem fixing process. The continuous variation of learner's manage is segmented in a few ranges. The transition from some level i to the subsequent higher level i+1 outcomes from the internalization of the ideas essential to manage the actions at degree i. The use of reflection resources is proposed for supporting the internalization process. they make concrete some abstract attributes of her behaviour. The subsequent degree is reached when the learner is in a position to use aspects refied at degree i to interact with air jordan retro 1 pas cher the system at degree i+one. A same manage idea is therefore used first of all as a description language (by the method) at some level i and then as a command language (by the learner) at the level i+1. This language shift system elevates the learner's degree of manage and her level of nike free run pas cher abstraction. It is explained by analogy with an elevator that would transfer within a pyramid. A floor of the pyramid corresponds to some control degree. We air jordan 1 pas cher use a formal notation to appear within the language change system and relate it to various psychological theories and current ECSs. We explain a studying environment (MEMOLAB) that illustrates the distribution of roles amongst a number of brokers. an agent who is in a position to resolve the exact same issues through the exact same interface. The diploma of help provided by the professional is tuned by another agent, the tutor, which screens the conversation. MEMOLAB includes a number of tutors corresponding to numerous educating styles. These nike free run 2 pas cher tutors are chosen by their