Marco Antonio Bueno Filho - Electrochemistry and chemical equilibrium: the dynamics of submicroscopic representation during the action of students.

Version 1

      Publication Details (including relevant citation   information):

      BUENO FILHO, M. A.; NAVARRO, D. N.; LOPES, E. C. D.; NASCIMENTO,   M. G.

      10th biannual Conference of the European Science Educ. Research   Assoc., 2013, Nicosia, Cyprus

      Abstract:

      The construction of submicroscopic representation has been   pointed as a source of alternative conceptions by college   students as well as basic education. Besides the algorithmic   procedures, the difficulties are related mainly to the nature of   submicroscopic events that require conceptual abstraction. This   paper aims to access details about the construction of   submicroscopic representation in undergraduate students based on   Conceptual Fields Theory Gerard Verganud. We prepared an   instrument that students should position themselves in relation   written about Chemical Equilibrium and Electrochemical   Processing. In a second time, were invited to present their   arguments orally freely. Data were recorded on video and   submitted to Textual Analysis Discursive with the help of   software Transana. Were extrapolated six operational invariants   for the chemical-equilibrium state without three shared with the   situation that was about electrochemistry. The data suggest that   good performance at this level of representation should not be   understood as disconnected nature of the topics in question -   chemical or electrochemical balance - but the operative quality   of the justifications used by the subjects. We understand how   those justifications operative associated with the   concepts-in-action within the meaning of Vergnaud.

      Address (URL): http://pesquisa.ufabc.edu.br/pecq/wp-content/uploads/2014/01/ESERA-3-Electrochem istry-and-chemical-equilibrium-the-dynamics-of-submicroscopic-representation-dur ing-the-action-of-subjects.doc