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Communication Dans Un Congrès Année : 2015

One-sided limits of a function at a point in a drug metabolism context as explained by non-compulsory secondary students

Résumé

We present the results of an exploratory and descriptive study performed with Spanish students in Non-Compulsory Secondary Education focusing on how they explain the meaning of both one-sided limits within a temporal phenomenon (drug metabolism) given by a graphical non-authentic model. We organised the given explanations according to the following options: Only calculation; interpretation in a neighbourhood (locally); meaning of the value (pointwise); direction of approaching in time with regard to right-sided limit. We also highlight a particular attention to other elements of the model apart from limiting notions and some difficulty to give sense to right-sided limit, possibly because the direction of approximation is contrary to the natural progression of time.
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Dates et versions

hal-01287255 , version 1 (12-03-2016)

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  • HAL Id : hal-01287255 , version 1

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José Antonio Fernández-Plaza, Luis Rico, Juan Francisco Ruiz-Hidalgo. One-sided limits of a function at a point in a drug metabolism context as explained by non-compulsory secondary students. 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.862-868. ⟨hal-01287255⟩
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