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Direct linkDana-Picard, Thierry; Kidron, Ivy; Zeitoun, David – International Journal for Technology in Mathematics Education, 2008
The study of a real function of two real variables can be supported by visualisation using a Computer Algebra System (CAS). One type of constraint of the system is due to the algorithms implemented, yielding continuous approximations of the given function by interpolation. This often masks discontinuities of the given function and can provide very…
Descriptors: Algebra, Mathematics Instruction, Calculus, Mathematics
Mann, Giora; Dana-Picard, Thierry; Zehavi, Nurit – International Journal for Technology in Mathematics Education, 2007
This article begins with a comparison of two groups of teachers, working on the same tasks in Analytic Geometry. One group has only basic experience in CAS-assisted problem solving, and the other group has extensive experience. The comparison is discussed in terms of the interplay between reflection, operative knowledge and execution. The findings…
Descriptors: Mathematics Education, Geometry, Mathematics Teachers, Problem Solving
Dana-Picard, Thierry – International Journal for Technology in Mathematics Education, 2005
A mathematician's work consists of proving theorems, calculating, and making mathematics understandable. An assistant for all three components is a Computer Algebra System. We describe and discuss various CAS-assisted processes for proving theorems, and discuss the constraints which can appear regarding efficiency, confidence in the result and…
Descriptors: Algebra, Mathematics Instruction, Validity, Mathematical Logic
