Function representations: an analysis of high school teachers productions
DOI:
https://doi.org/10.5007/1981-1322.2018v13n1p288Abstract
This work is an experience report that presents the results of an investigation that aimed to analyze the mobilization, manipulation and coordination of different representations of function in situations / activities produced and carried out by three teachers of High School Mathematics. Qualitative research had its data produced and collected by means of the situation / activities elaborated by the subjects that participated in the investigation, which were analyzed in light of Raymond Duval 's Theory of Semiotic Representation Records. The results show that the teaching proposals presented by the teachers contemplate the transformations, both of the treatment type and the conversion type, but the conversions favor only the phenomenon of congruence, also, it was possible to note the presence of punctuation procedures and extension of the tracing in the conversion of the algebraic representation to the graph.
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