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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
The Process of Introducing New Tasks Using Dynamic Geometry into the Teaching of Mathematics.
Laborde, Colette – 2002
This paper presents learning tasks of a new type that are made possible by dynamic geometry software and discusses reasons why it takes time for teachers to design and use such tasks. The paper is divided into four sections: (1) The Spatial and the Theoretical; (2) Tasks in Dynamic Geometry Software Fostering the Learning of Geometry; (3) The…
Descriptors: Cognitive Processes, Computer Uses in Education, Concept Formation, Educational Change
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