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Sketchpad

Sketchpad (aka Robot Draftsman) was a revolutionary computer program written by Ivan Sutherland in 1963 in the course of his PhD thesis, for which he… 
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Papers overview

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2013
2013
: Dynamic mathematics software like GeoGebra provides new opportunities for mathematics education. With proper technological and… 
2010
2010
In this paper, we seek to establish insight into varieties of modeling that occur, recurrently, in students’, teachers’, and… 
2009
2009
I investigated Form One students' learning of solid geometry in a phase-based instructional environment using Geometer's… 
2008
2008
In this paper we document the advantages of utilising technology to enhance teachers’ instructional activities. In particular we… 
2005
2005
This article discusses the impact of two contrasting early intervention programmes for a small number of young children with… 
Review
2003
Review
2003
This paper reviews the possibilities for modeling complex numbers in dynamic geometry software environments, and suggests that as… 
2000
2000
We relate Butikov's recent pedagogical analysis of Keplerian motions to our previous velocity-space analyses using the hodograph… 
1999
1999
Copyright 1999 Psychologica Belgica. Author version of the paper reproduced here with permission from the publisher. 
1994
1994
Resume ; Baddeley (1990), dans le cadre de son modele de la memoire de travail, definit le calepin visuo-spatial (VSSP) comme le…