Um estudo da demonstração no contexto da licenciatura em matemática: uma articulação entre os tipos de prova e os níveis de raciocínio geométrico

AUTOR(ES)
DATA DE PUBLICAÇÃO

2009

RESUMO

The main purpose of this research was to investigate the influence of dynamic geometry environments in building up arguments by teaching graduating students in Mathematics. We also searched a probable articulation between the students geometrical development levels and the types of tests he makes. The research done distinguishes itself as qualitative with aspects from a study case. The procedures for collecting the data were the students`written records, their geometrical constructions taped in Geogebra software, dialogues audio-recorded, and interviews semistructured. The bibliographical review indicated a need for studies about the learning process of demonstrations in Mathematics teaching initial formation courses. The results analysis gathered by us permitted to observe that the dynamic geometrical environment has little influence on the arguments construction by the students. Our research subjects were not familiar with the environment tools and the to drag provided by the software became much more a way of confirming the empirical suppositions. The results also permit to infer the existence of an intermediate level between the existent levels designed by spatio-grafique geometry (G1) and protoaxiomática geometry (G2), that welcomes the transition moment between them. This intermediate level would have as characteristics the instability in the type of invocated object (physical and theorical) and in the type and validation (perceptive or theorical). We observed that the types of tests naïf empirism and crucial experience came up as a result of geometrical thinking in level G1, while the type of test mental experience appeared associated to geometrical thinking in level G2. Such observations also cooperated for the certain need of an intermediate geometrical thinking level between G1 and G2

ASSUNTO(S)

formação inicial de professores de matemática geometria -- estudo e ensino initial mathematics teaching formation matematica ambientes de geometria dinâmica professores de matematica -- formacao profissional geometry dynamic geometrical environments

ACESSO AO ARTIGO

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