Brousseau, G. Chevallard, Y. Buenos Aires: Aique Grupo Editor. Murillo, M. Piaget, J.
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Universidad de La Frontera, Chile, allanca ufro. Se observa una ausencia notoria de invariantes para enfrentar situaciones y problemas propuestos. Results of a study on the acquisition of the field concept in physics by high school and college freshmen students, carried out under the framework of Vergnaud's conceptual fields theory, are presented.
The aims of the study were to explore the links between students' cognitive structure and the formal structure of the field concept in physics, and to describe their levels of conceptualization of such a concept. Research findings confirm the potentialities of Vergnaud's theory to understand and explain the learning process of this basic physical concept. The links would manifest themselves in the use of symbolic representations and in a partial explicitation of some meanings that would suggest the presence of some operational invariants students use to cope with situations and problems that require an acceptable scientific conceptualization.
However, a clear absence of scientifically accepted operational invariants was observed. These results agree with Vergnaud's theory that states that a low level of conceptualization corresponds to lower levels of explicitation of operational invariants and their representations, and predomination of procedural aspects over conceptually richer predicates. Keywords: field concept in physics, concept learning, Vergnaud's theory of conceptual fields.
Ambos campos son magnitudes vectoriales definidas en cada punto del espacio y el tiempo. Son reglas del tipo si, Estas consideraciones, llevan a definir un concepto como un triplete de conjuntos Vergnaud, ; Son el referente de un concepto; I : conjunto de invariantes operatorios en que se basa la operacionalidad de los esquemas. Estas representaciones son el significante de un concepto. En ambos casos el instrumento fue aplicado a todo el grupo clase, elegido al azar entre todos los existentes para cada nivel.
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International Journal of Science Education , 21 1 ; Recebido em 06 janeiro, Aceito em 08 de setembro, Elige dos puntos o posiciones de la hormiga en esta trayectoria y determina la fuerza que ejerce el campo sobre la hormiga en dichos puntos. All the contents of this journal, except where otherwise noted, is licensed under a Creative Commons Attribution License. Services on Demand Journal. ABSTRACT Results of a study on the acquisition of the field concept in physics by high school and college freshmen students, carried out under the framework of Vergnaud's conceptual fields theory, are presented.
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