2021
DOI: 10.1007/s10763-021-10201-1
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Design of Classroom Discussions and the Role of the Expert in Fostering an Effective and Aware Use of Examples as a Means of Argumentation

Abstract: Tasks that require students to construct examples that meet certain constraints are frequently used in mathematics education. Although examples do not serve as proofs for general statements, they have a supporting role in the preliminary stages of making sense of a certain mathematical phenomenon as well as in the development of argumentation. We hypothesize that examples of the limit-confirming type could also support the initiation of arguments for refuting an existential claim. Although students may be able… Show more

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Cited by 3 publications
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“…On the other side, often classroom instruction does not pose enough attention to argumentation processes which go beyond a series of calculations, or does not offer students an active role in explaining processes and results [68]. Some strategies to improve the argumentation capacities of students can be the production of examples as a starting point to build proofs [69], or the use of dynamic explorations to gain a direct experience of the mathematical objects under study and to support conjecturing [70].…”
Section: Discussionmentioning
confidence: 99%
“…On the other side, often classroom instruction does not pose enough attention to argumentation processes which go beyond a series of calculations, or does not offer students an active role in explaining processes and results [68]. Some strategies to improve the argumentation capacities of students can be the production of examples as a starting point to build proofs [69], or the use of dynamic explorations to gain a direct experience of the mathematical objects under study and to support conjecturing [70].…”
Section: Discussionmentioning
confidence: 99%