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ERIC Number: EJ830072
Record Type: Journal
Publication Date: 2008-Dec
Pages: 24
Abstractor: As Provided
Reference Count: 0
ISSN: ISSN-1382-3892
Graphic Calculators and Micro-Straightness: Analysis of a Didactic Engineering
Maschietto, Michela
International Journal of Computers for Mathematical Learning, v13 n3 p207-230 Dec 2008
This paper concerns the analysis of a didactic engineering, the aim of which is to introduce Calculus, at secondary-school level, through the relationship between global and local points of view. It was designed for a graphic-symbolic calculator environment and structured in accordance with a learning trajectory from identifying the graphical phenomenon of local linearity to its mathematical formulation. This learning trajectory involves the reconstruction of the relationship with the tangent line to a curve at a chosen point. The analysis shows the use of different semiotic systems in order to grasp this phenomenon and construct its mathematical meaning.
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Publication Type: Journal Articles; Reports - Descriptive
Education Level: Elementary Secondary Education; Secondary Education
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A