El Pensamiento Probabilístico de los Profesores de Biología en Formación

AUTOR(ES)
FONTE

Bolema

DATA DE PUBLICAÇÃO

2014-12

RESUMO

Prospective secondary teachers need training in accordance with the demands of the 21st century. This requires the development of a thought that allows interpreting and addressing the phenomena of random nature. The aim of this work is to determine trends of probabilistic thinking of biology teachers in training from the province of Mendoza, Argentina. We applied a questionnaire to 325 students pursuing this career. It consists of three parts: the first deals with the demographic variables of students, the second is the recognition of randomness, and the third is the estimation of the probability of events. Responses were analyzed from the application of different statistical techniques; the independence test, analysis of variance, Tukey's test, cluster analysis and discriminant analysis were used. Significant differences between the recognition of randomness and the context of the event were found, being greater in the context of the game rather than the physical natural environment. Meanwhile, in the physical natural context states randomness is stated from causality, in gambling it states from uncertainty. Besides there was no relationship of dependency between the recognition of randomness and the age of the students, as well neither with their academic level. Regarding the estimation of probability, students argue mainly from the equiprobability and from contingency. Cluster analysis and discriminant analysis allowed us to find four trends of thought: uncertainty, causality, contingent and personalistic.

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