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Direct linkMariotti, Maria Alessandra – Research in Mathematics Education, 2012
The objective of this paper is to discuss the didactic potential offered by the use of a Dynamic Geometry System (DGS) in introducing students to theoretical thinking and specifically to the practice of proof. Starting from a discussion about what constitutes the general objective in developing students' sense of proof, the notion of Theorem is…
Descriptors: Mathematics Instruction, Mathematical Logic, Validity, Geometry
Albiero, Paolo; Matricardi, Giada; Speltri, Daniela; Toso, Diana – Journal of Adolescence, 2009
The present study examined the validity of the Basic Empathy Scale (BES) [Jolliffe, D., & Farrington, D. P. (2006a). Development and validation of the Basic Empathy Scale. "Journal of Adolescence," 29, 589-611; Jolliffe, D., & Farrington, D. P. (2006b). Examining the relationship between low empathy and bullying. "Aggressive…
Descriptors: Prosocial Behavior, Aggression, Factor Structure, Adolescents
Download full textAntonini, Samuele – International Group for the Psychology of Mathematics Education, 2004
The equivalence between a statement and its contrapositive is so obvious for an expert that, usually, he does not need any explanation. In this paper, we shall examine the argumentations which students produce in order to justify a statement that, in their opinion, is equivalent to a given statement. We shall observe that the most common…
Descriptors: High School Students, Grade 10, Secondary School Mathematics, Persuasive Discourse
