TY  - BOOK
AU  - Guin, Dominique. ed.
AU  - Guin,Dominique
AU  - Ruthven,Kenneth
AU  - Trouche,Luc
TI  - The didactical challenge of symbolic calculators: turning a computational device into a mathematical instrument 
SN  - 9780387231587
PY  - 2005///
CY  - New York
PB  - Springer
KW  - Mathematics
KW  - Study and teaching (Secondary)
KW  - Audio-visual aids
KW  - Calculators
ER  -