Campo conceptual composición/estructura en Químicatendencias cognitivas : etapas y ayudas cognitivas

Résumé

This investigation is about the significance learning in the conceptual field of composition/structure and the linguistc representation with chemestry formuls. This formuls are relative and moleculars. This research looks at the previous knowlegde like cognitive tendencies in terms of concepts-in-action and theorems-in-action. Although analyze difficulties and ruptures in cognitive face and cognitive helps in a gruop of students of second level of college. It is possible that the first conception of ideas forms triads like element"simple substance"atoms and compound substance-homogeneous mix-molecule. First conception is like elemental symbol and the second conception is like mechanic association of those. This equivalences changes from a sensorial perception and natural language to structure terms more aproximate to chemestry knowlegde and signifiers chemicals.