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Normalising Geometrical Constructions: A Context for the Generation of Meanings for Ratio and Proportion
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Psycharis, Georgos; Kynigos, Chronis – International Group for the Psychology of Mathematics Education, 2004
This paper describes aspects of 13 year-olds activity in mathematics as emerged during the implementation of proportional geometric tasks in the classroom. Pupils were working in pairs using a piece of software specially designed for multiple representation (symbolic and graphical) of the variation in parametric procedures with dynamic…
Descriptors: Geometric Concepts, Plane Geometry, Visual Aids, Computer Software