Perfiles conceptuales como instrumentos de evaluación de una intervención didáctica

The first global results of a research are exhibited, belonging to a PhD thesis in which it is assumed that through the use of Information and Communication Technologies, engineering students could modify their Conceptual Profiles on oscillating systems. The idea of Conceptual Avances en la Ensenanza de la Fisica· 74 · Claudio Enrique, Marta Yanitelli, Silvia GiorgiProfile of Mortimer recognizes that in the same subject several meanings coexist for the same word or concept - even for those of a scientific nature -, which can be accessed in the appropriate context. In this investigation, the profiles were elaborated by means of an Epistemological Matrix that included three domains, and from the comprehension levels, four zones were proposed. In the questionnaire used as an instrument, a slogan was added at the end of each question where students should indicate the degree of confidence with which their answers were given, which was used to construct the Conceptual Profile related to metacognition. The activities mediated by the Information and Communication Technologies were used in the introductory class on Oscillation Movement, and in experimental activities with Virtual Learning Laboratories. The results showed that the students presented different levels of compression. Prior to the didactic intervention the majority was located in the area of interpretative realism, while after this, the area with more individuals corresponded to classical Rationalism. Regarding the Conceptual Profiles related to metacognition, different situations were observed where the subjects modified both their area and their degree of confidence, observing in general an evolution in most of the students. In any of the cases, the Conceptual Profiles proved to be a novel and interesting tool to evaluate the didactic intervention.