论文信息 - HOW TO CHOOSE THE INDEPENDENT VARIABLE

HOW TO CHOOSE THE INDEPENDENT VARIABLE

A case study is presented, where the paper and pencil environment and the technological one are combined together and designed to face a subtle mathematical problem: how to choose the dependent Vs independent variables in modelling situations? We show how the combined approach allows to pose the problem in an adequate way for 9 grade students, provided the teacher interventions support suitably their learning processes. The case is analysed through two lenses from the literature: the so called instrumental approach and the notion of semiotic mediation.

Ferdinando Arzarello Domingo | Liceo Issel | F. A. Domingo | Liceo Issel

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