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GENESE INSTRUMENTALE DU DEPLACEMENT EN GEOMETRIE DYNAMIQUE CHEZ DES ELEVES DE 6EME

Angela Maria Restrepo 1
1 IAM - Informatique et Apprentissage des Mathématiques
LIG - Laboratoire d'Informatique de Grenoble, Inria - Institut National de Recherche en Informatique et en Automatique
Abstract : We study the process of appropriation of the dragging process by students in a dynamic geometry environment in order to better understand the difficulties that students have when they use it, as some studies have revealed. We use the instrumental approach (Rabardel) and the structure of the schemes given by Vergnaud and Gomes, we were able to study the instrumental genesis of dragging and the different schemes that constitute the dragging instruments.
We used a mixed methodology, combining a didactical engineering and a naturalist observation, due to the long period of time given to our experimentations. We worked for a whole school year with a teacher and two sixth grade classes; we carried out around 15 situations using Cabri-geometry, allowing us to observe and to study the instrumental genesis of different uses of dragging.
We studied the use schemes and the instrumented action schemes of the dragging process, like the use schemes of “dragging an object” or “distinguishing the different type of points”, or the action instrumented schemes “dragging to validate a construction” or “verifying that two straight lines are perpendicular”. Using these schemes, we were able to characterize the dragging instruments and to better understand their appropriation and the possible difficulties that students may have.
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https://tel.archives-ouvertes.fr/tel-00334253
Contributor : Angela Maria Restrepo <>
Submitted on : Friday, October 24, 2008 - 4:15:54 PM
Last modification on : Thursday, November 19, 2020 - 1:00:34 PM
Long-term archiving on: : Monday, June 7, 2010 - 9:50:20 PM

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  • HAL Id : tel-00334253, version 1

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Citation

Angela Maria Restrepo. GENESE INSTRUMENTALE DU DEPLACEMENT EN GEOMETRIE DYNAMIQUE CHEZ DES ELEVES DE 6EME. Mathématiques [math]. Université Joseph-Fourier - Grenoble I, 2008. Français. ⟨tel-00334253⟩

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