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Approaching Functions: Cabri Tools as Instruments of Semiotic Mediation
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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
Integration of Technology in the Design of Geometry Tasks with Cabri-Geometry.
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Laborde, Colette – International Journal of Computers for Mathematical Learning, 2001
Discusses the gap in France between institutional support for the use of technology in mathematics teaching and its weak integration into teacher practice. Identifies and analyzes steps in integration and indicates that the role played by technology in moving from being a visual to an essential constituent of the meaning of tasks affects student…
Descriptors: Computer Software, Computer Uses in Education, Concept Formation, Educational Technology
Dynamic Geometry Environments as a Source of Rich Learning Contexts for the Complex Activity of Proving.
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Laborde, Colette – Educational Studies in Mathematics, 2000
Attempts to develop a global discussion about the roles of dynamic geometry systems (DGS) by addressing four points: (1) the variety of possible contexts for proof in a DGS; (2) the dual nature of proof (cognitive and social) as reflected in the "milieu" constructed around the use of a DGS; (3) from observing to proving; and (4) overcoming the…
Descriptors: Cognitive Processes, Communication (Thought Transfer), Computer Software, Computer Uses in Education
Function and Graph in DGS Environment
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Mariotti, 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