On Learning the Rate of Instantaneous Change=A Propos De L'Apprentissage Du Taux De Variation Instantane.

Divided into two parts, this article analyzes why some pupils feel reserve about instantaneous velocities and instantaneous flows. The second part relates reactions of pupils facing a problem that implicates the instantaneous rate of change. Describes some characteristics of this problem that enables the authors to explain its instructional impact. (Author/MDH)