DUGiDocsDiseño, construcción y validación de una pauta de observación de los significados de la probabilidad en el aula de Educación Primaria
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This article shows the process of design, construction and validation of the Observation Guide of
Probability Meanings - OGPM, whose purpose is to identify episodes of primary school mathematics
class in which teaching practices about different meanings of probability are observed. In this process
three phases are distinguished: 1) review of the literature; 2) construction of the initial version; 3)
validation through expert judgment and pilot test. Evaluation’ scores and expert’ opinions have
provided a positive assessment in relation to the indicators. However, some indicators have been
eliminated and reformulations have been made to improve their clarity. The final version consists of 30 indicators corresponding to the different meanings of probability: intuitive (7), classical (6),
frequential (6), subjective (6) and axiomatic (5). It is concluded that OGPM can be a useful tool both
to investigate the teacher’ professional knowledge and to improve the teaching and learning of
probability in Primary Education
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