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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
Baccaglini-Frank, Anna; Mariotti, Maria Alessandra – International Journal of Computers for Mathematical Learning, 2010
Research has shown that the tools provided by dynamic geometry systems (DGSs) impact students' approach to investigating open problems in Euclidean geometry. We particularly focus on cognitive processes that might be induced by certain ways of dragging in Cabri. Building on the work of Arzarello, Olivero and other researchers, we have conceived a…
Descriptors: Cognitive Processes, Geometry, Models, Interviews
Falcade, Rossana; Laborde, Colette; Mariotti, Maria Alessandra – Educational Studies in Mathematics, 2007
Assuming that dynamic features of Dynamic Geometry Software may provide a basic representation of both variation and functional dependency, and taking the Vygotskian perspective of semiotic mediation, a teaching experiment was designed with the aim of introducing students to the idea of function. This paper focuses on the use of the Trace tool and…
Descriptors: Semiotics, Computer Software, Mathematics Instruction, Geometry
Peer reviewedMariotti, Maria Alessandra – Educational Studies in Mathematics, 2000
Reports on a long-term teaching experiment carried out in the 9th and 10th grades of a scientific high school as part of a larger research project. Aims to clarify the role of a particular software, Cabri Geometry, in the teaching/learning process. Focuses on the social construction of knowledge. (Author/MM)
Descriptors: Computer Software, Computer Uses in Education, Educational Technology, Geometry
Download full textMariotti, Maria Alessandra; Laborde, Colette; Falcade, Rossana – International Group for the Psychology of Mathematics Education, 2003
Assuming that dynamic features of Dynamic Geometry Software may provide a basic representation of both variation and functional dependency, and taking Vygotskian perspective of semiotic mediation, a teaching experiment has been designed with the aim of introducing pupils to the idea of function. First data coming from the observations in Italian…
Descriptors: Mathematics, Foreign Countries, Mathematics Instruction, Experiments
Peer reviewedMariotti, Maria Alessandra – International Journal of Computers for Mathematical Learning, 2001
Describes a long term teaching experiment carried out with students from grades 9 and 10. Aims at clarifying the role of the Cabri environment in teaching-learning processes. Analysis of protocols shows the possible evolution of a justification into a proof but at the same time indicates that this evolution is not expected to be simple and…
Descriptors: Computer Software, Computer Uses in Education, Educational Technology, Geometric Constructions
