NDLI: Measuring in dynamic geometry environments as a tool for conjecturing and proving

Content Provider	Springer Nature Link
Author	Olivero, Federica Robutti, Ornella
Copyright Year	2007
Abstract	This paper sits within the research on the affordances of new technologies in the mathematics classroom and focuses on a specific feature that is available in dynamic geometry environments, i.e. measuring tools, within the context of conjecturing and proving in open geometry problems. We develop a classification of different modalities of measuring, based on our previous work on dragging. The modalities are illustrated through the analysis of 15–16 year-old students’ proving processes, which focuses on how these modalities relate to the moves between the spatio-graphical field and the theoretical field and may either support or hinder the proving process. The classification of the modalities of measuring enables researchers to access students’ cognitive processes and teachers to be aware of the different possible uses and interpretation of measuring, giving them tools to support students when difficulties arise.
Starting Page	135
Ending Page	156
Page Count	22
File Format	PDF
ISSN	13823892
Journal	International Journal of Computers for Mathematical Learning
Volume Number	12
Issue Number	2
e-ISSN	15731766
Language	English
Publisher	Springer Netherlands
Publisher Date	2007-06-07
Publisher Place	Dordrecht
Access Restriction	Subscribed
Subject Keyword	Conjecturing Proving Dynamic geometry Measuring modalities Spatio-graphical Theoretical Open problem Mathematics Interdisciplinary Studies Mathematics Education
Content Type	Text
Resource Type	Article
Subject	Theoretical Computer Science Engineering Computational Theory and Mathematics Computer Science Applications

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