Subjective probability in use: reasoning about a chess game

  1. Luis J Rodríguez-Muñiz 1
  2. Lorena Rodríguez-Suárez 1
  3. Laura Muñiz-Rodríguez 1
  1. 1 Universidad de Oviedo [Oviedo]
Actes:
Twelfth Congress of the European Society for Research in Mathematics Education (CERME12)

Any de publicació: 2022

Volum: TWG05

Número: 23

Tipus: Aportació congrés

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Resum

Subjective probability is often left aside in elementary school curricula, despite it is often used in daily-life. In this paper, we expose a didactic experiment with 5 th grade students (10-11 years old) in which they were asked to handle subjective probability. Findings show how students were able to make probability judgements even without a numerical support, they changed their initial judgements when more quality information was provided, and they refrained from state a founded judgement when they considered available information was not enough. Results endorse the importance of introducing this type of probabilistic reasoning in elementary school.