[Comparative study of the development of the notion of numerical proportion and the copying of geometrical figures in various socioeconomic milieux].
D000367:Age Factors; D002648:Child; D002657:Child Development; D006801:Humans; D007361:Intelligence Tests; D012959:Socioeconomic Factors; D013028:Space Perception
Etude comparative du développement de la notion de proportion numérique et de la copie de la figue géometrique dans différents milieux socio-économiques.