## 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.

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 language | English |
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Title of host publication | Proceedings of the 11th Congress of the European Society for Research in Mathematics Education, CERME11 |

Publisher | Utrecht University |

Pages | 2957-2958 |

Number of pages | 2 |

Publication status | Published - 2019 |

Event | 11th Congress of the European Society for Research in Mathematics Education, CERME11 - Utrecht, Netherlands Duration: 6 Feb 2019 → 10 Feb 2019 |

### Conference

Conference | 11th Congress of the European Society for Research in Mathematics Education, CERME11 |
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Country/Territory | Netherlands |

City | Utrecht |

Period | 6/02/19 → 10/02/19 |

## Keywords

- Artefact
- graphical calculator
- semiotic mediation
- utiliazation schemes