The role of abduction in proving processes |
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Authors: | Email author" target="_blank">Bettina?PedemonteEmail author David?Reid |
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Institution: | (1) DiDiMa srl. – Istituto per le Tecnologie Didattiche, CNR, Genoa, Italy;(2) School of Education, Acadia University, Wolfville NS, Canada |
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Abstract: | This paper offers a typology of forms and uses of abduction that can be exploited to better analyze abduction in proving processes.
Based on the work of Peirce and Eco, we describe different kinds of abductions that occur in students’ mathematical activity
and extend Toulmin’s model of an argument as a methodological tool to describe students’ reasoning and to classify the different
kinds of abduction. We then use this tool to analyze case studies of students’ abductions and to identify cognitive difficulties
students encounter. We conclude that some types of abduction may present obstacles, both in the argumentation when the abduction
occurs and later when the proof is constructed. |
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Keywords: | |
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