Educação Matemática Debate

Exponential Function: a proposal for mathematical tasks

Rodrigo dos Santos Ferreira, André Pereira da Costa — Mon, 01 Jan 2024 00:00:00 +0000

The purpose of this work has been to propose mathematical tasks involving the exponential function using the GeoGebra software. Thus, it has been based on the discussion about mathematical tasks by João Pedro da Ponte and the Theory of Semiotic Representation Registers. This is a qualitative explanatory research as regards its aims and it has been based upon bibliographical survey and assessement of the sources. Its development has involved the elaboration and adaptation of tasks through testing in the GeoGebra, followed by the writing of a set of didactical guidelines to teachers. The GeoGebra has been proved to be a suitable didactical resource for proposing tasks on exponential functions by enabling an experimental character in the classroom, which could provide High School students with autonomy in studying this mathematical concept.

El sistema de numeración maya en hermeneusis comprensiva, ecosófica y diatópica

Milagros Elena Rodríguez — Sat, 22 Jun 2024 00:00:00 +0000

Se analiza el sistema de numeración maya en hermeneusis comprensiva, ecosófica y diatópica, un transmétodo decolonial planetario-complejo. Para ello, recobramos el patrimonio matemático desde el histórico, su cultura, religión, misticismo. Desmitificando el encubrimiento de tan valiosos aportes matemáticos, considerados con el nivel más alto de abstracción. La hermeneusis ecosófica y diatópica del sistema numérico maya va a concordar topoi al estilo Heracliano de alto nivel como: abstracción concreción; cotidianidad-matemática, matemática-cultura; entre otros. En los momentos: analítico-empírico, propositivo del transmétodo llegamos a mostrar la excelsitud maya. En las conclusiones inconclusas vemos que en el sistema maya es posicional con alta valía mística; el cero maya un elemento de esencial valor que indica la llenura y no la carencia con diversas representaciones. Ejemplos de conversiones sistemas maya y posicional ilustran la pesquisa. Mostramos la ejemplar ciudadanía planetaria encubierta de los mayas y su aporte.

Training of teachers who teach Mathematics with DICT in the Elementary School: a systematic review of the SBEM publications

Judith Ferreira da Silva, Wellington Pereira de Queirós — Tue, 02 Jul 2024 00:00:00 +0000

This bibliographic survey identifies teachers training models that address the teachers training for assignments in mathematics in the Elementary School with DICT. We use, as a theoretical foundation, the training models of José Contreras, and the documentary research methodology of the chronicle type. We have investigated a total of ten articles which were published between 2013 and 2022, in the SBEM journals, and in articles from the ENEM annals. The analysis showed the implicit predominance of the reflective training model for teachers. Thus, we point out the need for research that theoretically explains the training models being used and that addresses the use of DICT from the perspective of the critical intellectual model of mathematics teachers training.