Abstract

SUBTIL, Manuela; DOMINGOS, António  and  MARIOTTI, Maria Alessandra. The graphing calculator in basic education with the contribution of the Semiotic Mediation. Invest. Práticas [online]. 2023, vol.13, n.1, pp.116-143.  Epub Mar 28, 2023. ISSN 2182-1372.  https://doi.org/10.25757/invep.v13i1.343.

This article aims to analyze the resolution of an exploratory Geometry task, with the mediator artifact, graphing calculator. We sought to understand how the student promoted artifact signs through the development of usage schemes and instrumented action schemes. Later, in the collective discussion, we sought to analyze how the teacher promoted the transition from artifact signs into mathematical signs. Using a qualitative research methodology of an interpretive and descriptive nature, a case study modality was used focusing on the work of two pairs of students. The results show that the graphing calculator worked as an instrument of semiotic mediation and the teacher’s orchestration in the collective discussion was essential to the development of the semiotic potential of this artifact, resulting in the construction of mathematical knowledge.

Keywords : Graphing calculator; semiotic potential of the artifact; usage schemes; instrumented action schemes; semiotic mediation.

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