The architecture of PROTO TEG, a self improving tutor in geometry. This system is in a position to discover the criteria helpful for choosing the didactic methods it has at its disposal. These requirements are expressed as traits of the pupil model. They are elaborated by evaluating pupil model states recorded when a technique was efficient and those recorded when the exact same strategy was not effective. This comparison is performed by machine learning methods, much more exactly by learning concepts from examples. An empirical experiment was carried out in purchase to evaluate the designed self enhancing features and circumstances had been discovered for 5 of the nine didactic methods. Nevertheless, this new understanding did not lead to PROTO TEG being much more efficient in terms of pupil overall performance. (in push), Distributing cognition more than people and machines, to appear in: De Corte, Mandl, Glaser Vosniadu, Worldwide Perspectives on the Psychological and Educational Foundations of This chapter considers pc based studying environments from a socio cultural perspective. It relates several concepts from this approach with style ideas and methods specific to studying environments. We propose a metaphor intended to help designers of studying environments to botte ugg pas cher make feeling of method features inside the socio cultural perspective. This metaphor considers the software program and the learner as a solitary cognitive method, variably dispersed over a human and a machine. This chapter provides a metaphor for creating educational computing systems (ECSs) that progressively transfer to the learner an growing quantity of manage in the problem solving procedure. The continuous variation of learner's manage is segmented in a couple of levels. The transition from some level i to the next higher degree i+one results from the internalization of the concepts necessary to manage the activities at level i. The use of reflection resources is proposed for supporting the internalization process. they make concrete some summary features of her behaviour. The subsequent degree is attained when the learner is in a position to use elements refied at level i to interact with the method at degree i+1. A exact same control concept is hence used first of all as a description language (by the system) at some level i and then as a command language (by the learner) at the level i+1. This canada goose pas chers language shift mechanism elevates the learner's level of manage and her level of canada goose france abstraction. It is described by analogy with an elevator that would move within a pyramid. A floor of the pyramid corresponds to some control degree. We use a official notation to appear within the language shift system and relate it to various psychological theories and present ECSs. We explain a learning environment (MEMOLAB) that illustrates the distribution of roles among several brokers. an agent who is able to resolve the same issues through the exact same interface. The diploma of assistance supplied by the professional is uggs pas cher tuned by another agent, the tutor, which screens the interaction. MEMOLAB includes a number of tutors corresponding
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