A socially built understanding of rational numbers - Archive ouverte HAL Accéder directement au contenu
Communication Dans Un Congrès Année : 2015

A socially built understanding of rational numbers

Résumé

This poster focus on an exploratory study which is part of a research study which aims to understand how to develop students’ emerging understanding of rational numbers, at elementary school, looking into how number sense development is promoted, through the use of different representations - percents, decimals and fractions - being the percentage the introductory one. Through a design research, based on a teaching experiment, guided by a conjecture, we intend to analyse the interactions, the strategies and the students’ productions when solving tasks. In this poster some data analysis from the exploratory study, concerning the use of percents, will be presented. This data show that percentage seems to be a good starting to introduce rational numbers.
Fichier principal
Vignette du fichier
CERME9.TWG02.25.posters.Guerreiro&Serrazina.pdf (81.33 Ko) Télécharger le fichier
Origine Fichiers éditeurs autorisés sur une archive ouverte
Loading...

Dates et versions

hal-01286855 , version 1 (11-03-2016)

Identifiants

  • HAL Id : hal-01286855 , version 1

Citer

Helena Gil Guerreiro, Lurdes Serrazina. A socially built understanding of rational numbers. CERME 9 - Ninth Congress of the European Society for Research in Mathematics Education, Charles University in Prague, Faculty of Education; ERME, Feb 2015, Prague, Czech Republic. pp.383-384. ⟨hal-01286855⟩
105 Consultations
71 Téléchargements

Partager

Gmail Mastodon Facebook X LinkedIn More