Possibilities of theoretical exploration of reflections by students from the licentiate in mathematics on their difficulties in solving questions about afinne and quadratic functions
DOI:
https://doi.org/10.5007/1982-5153.2023.e87102Keywords:
Epistemological and didactic obstacles, Formation of teachers who teach mathematicsAbstract
This text brings some reflections concerning the difficulties identified in the resolution of activities of a test involving affine and quadratic functions presented by eighteen academics from the second year of the Mathematics Licentiate course. The activities were developed based on the Theory of Registers of Semiotic Representation, whose resolutions revealed the difficulty in converting graphic and natural language registers to the algebraic symbolic register. Difficulties were also observed regarding the use of mathematical arguments to justify the strategies used to solve the phenomena presented. The lack of formal organization in the resolutions was another aspect revealed by the academics through the test activities. From these difficulties, we interpret the conversion from graphic to algebraic symbolic as a didactic obstacle and the conversion from natural language to algebraic symbolic as an epistemological obstacle for the acquisition of affine and quadratic functions knowledges.
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