The graphing calculator as an instrument of semiotic mediation in the construction of the function concept

Manuela Subtil, António Domingos

Research output: Chapter in Book/Report/Conference proceedingChapter

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Abstract

According to some authors, the graphing calculator facilitates the students' ability to reflect and generalize, when involved in performing exploratory tasks, leading them to the construction of mathematical knowledge (Doorman, Drijvers, Dekker, Heuvel-Panhuizen, Lange e Wijers, 2007).
We present the resolution of the task: "My hand", with the graphing calculator, whose purpose was to consolidate the concept of function and to understand when a cartesian graph corresponds to the representation of a function. On the other hand, looking at the artifact, the graphing calculator, as a instrument of semiotic mediation, we intend to analyze how the transition from personal meanings to mathematical meanings (Mariotti, 2018) was developed, in the resolution of the task.
Original languageEnglish
Title of host publicationProceedings of the 11th Congress of the European Society for Research in Mathematics Education, CERME11
PublisherUtrecht University
Pages2957-2958
Number of pages2
Publication statusPublished - 2019
Event11th Congress of the European Society for Research in Mathematics Education, CERME11 - Utrecht, Netherlands
Duration: 6 Feb 201910 Feb 2019

Conference

Conference11th Congress of the European Society for Research in Mathematics Education, CERME11
CountryNetherlands
CityUtrecht
Period6/02/1910/02/19

Keywords

  • Artefact
  • graphical calculator
  • semiotic mediation
  • utiliazation schemes

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