Registros de representação semiótica: contribuições para o letramento probabilístico no 9º ano do ensino fundamental
Abstract
This research had the objective of describing and analyzing a teaching-learning
concept of Probability in two classes of the ninth elementary school, in a municipal
public school in Salto de Pirapora, in the interior of the State of São Paulo. The
acquisition of probabilistic language in learning concept of probability was a
motivating factor for the research project. The theoretical contributions of this
research involved the records of semiotic representation by Raymond Duval and the
literary probabilistic in the perspective of Iddo Gal. The guiding question of the
research was: "How are records of semiotic representation mobilized and
coordinated in tasks involving the context probabilistic? "A field work was elaborated
with activities involving classical and frequentist probability, counting and statistics
and a didactic sequence using experiments sample space, probability of simple
events, events composites, bar graphs, relative frequency, frequency distribution and
the tree diagram. As a teacher-researcher, the production of information originated
from activities developed by students in the form of written protocols, in addition to
audio records of dialogues that occurred in the correction of activities and records in
the logbook. The results of the analysis of the empirical material of the research
revealed that the students used different registers of semiotic representation in the
resolution of tasks. The mobilization and coordination of these registers support the
development of students' probabilistic literacy. Like this work was derived from the
analysis of a pedagogical practice, it is expected there are contributions to the
teaching practice in content involving combinatorial, statistical and probability for
elementary school.