Fiche du document
6 avril 2017
- handle: 10670/1.phwmrw
- doi: 10.1080/14794802.2013.803778
Sujets proches
Text-books Text-books School-books Text-books SchoolbooksCiter ce document
Alejandro S. González-Martín et al., « The introduction of real numbers in secondary education. An institutional analysis of textbooks », Papyrus : le dépôt institutionnel de l'Université de Montréal, ID : 10.1080/14794802.2013.803778
Métriques
Partage / Export
Résumé
In this paper we analyse the introduction of irrational and real numbers in secondary textbooks, and specifically the propositions on how these should be taught, in a sample of Brazilian textbooks used in state schools and approved by the Ministry of Education. The analyses discussed in this paper follow an institutional perspective (using Chevallard's Anthropological Theory of Didactics). Our results indicate that the notion of irrational number is generally introduced on the basis of the decimal representation of numbers, and that the mathematical need for the construction of the field of real numbers remains unclear in the textbooks. It seems that textbooks used in secondary teaching institutions develop mathematical organisations which focus on the practical block.