@misc{10481/42204, year = {2015}, url = {http://hdl.handle.net/10481/42204}, abstract = {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.}, organization = {This study was performed with aid and financing from Fellowship FPU AP2010- 0906 (MEC-FEDER), project EDU2012-33030 of the National Plan for R&D&R (MICIN), Subprogram EDUC, and group FQM-193 of the 3rd Andalusian Research Plan (PAIDI).}, publisher = {Charles University. Faculty of Education; European Society for Research in Mathematics Education (ERME)}, keywords = {Partial modelling activity}, keywords = {One-sided limits}, keywords = {Nonauthentic drug metabolism model}, keywords = {Spontaneous extension of a model}, keywords = {Graphics}, title = {One-sided limits of a function at a point in a drug metabolism context as explained by non-compulsory secondary students}, author = {Fernández Plaza, José Antonio and Rico Romero, Luis and Ruiz Hidalgo, Juan Francisco}, }