A discussion on the definition of the limit of a sequence
DOI:
https://doi.org/10.23925/1983-3156.2024v26i3p515-533Keywords:
Limit of sequence, Formal definition, Representations, Higher educationAbstract
In this article we present a study on difficulties in the process of learning the definition of the limit of a sequence. It is a qualitative study whose aim was to analyze the actions of a subject when dealing with a situation involving this definition. To this end, we discussed the concepts involved in the conceptual field of this definition, together with the analysis of a proposed situation. The data was produced through written and oral production, collected from the activity resolution sheets and audio and video produced during the session. The analyses show the difficulty in disengaging from graphic representations used to deal with particular situations, in the case of sequences that converge, even when the subject is confronted with a study of the conceptual elements involved in the formal definition.
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