The Didactical Challenge of Symbolic Calculators Turning a Computational Device into a Mathematical Instrument - Guin, Dominique; Ruthven, Kenneth; Trouche, Luc.; SpringerLink (Online service) (Boston, MA : Springer Science+Business Media, Inc., 2005)
Keywords: Mathematics -- Study and teaching (Secondary) -- Audio-visual aids; Calculators; Education; Curriculum Studies; Educational Technology; Learning & Instruction; Mathematics Education