String figures : a mathematical activity in some traditional societies
Les jeux de ficelle : une activité mathématique dans certaines sociétés traditionnelles
Anglais
This article examines the making of “string figures”, a procedural activity carried out in a number of traditional societies. From the analysis of some ethnographic documents, we will give two different conceptualizations of such objects. This will allow us to show that a string figure may be truly seen as the result of intellectual work, using concepts such as “procedures”, “operations”, “sub-procedures”, “iterations”, and “transformations”. This work involved the elaboration of algorithms based on investigations of complex spatial configurations. Approached in this way, “string figures” appear to be the product of a mathematical activity.
Ethnomathematics, Anthropology, string figures, algorithm