Global ETD Search

1	From Physical Model To Proof For Understanding Via DGS: Interplay Among Environments Osta, Iman M. 07 May 2012 (has links) (PDF) The widespread use of Dynamic Geometry Software (DGS) is raising many interesting questions and discussions as to the necessity, usefulness and meaning of proof in school mathematics. With these questions in mind, a didactical sequence on the topic “Conics” was developed in a teacher education course tailored for pre-service secondary math methods course. The idea of the didactical sequence is to introduce “Conics” using a concrete manipulative approach (paper folding) then an explorative DGS-based construction activity embedding the need for a proof. For that purpose, the DGS software serves as an intermediary tool, used to bridge the gap between the physical model and the formal symbolic system of proof. The paper will present an analysis of participants’ geometric thinking strategies, featuring proof as an embedded process in geometric construction situations. Geometrie Dynamische Geometrie Software Beweis Kegelschnitte Mathematik in der Sekundarstufe Lehramts-studierende geometrisches Denken Geometry Dynamic Geometry Software Proof Conics Secondary Mathematics Pre-Service Teachers Geometric Thinking ddc:510 rvk:SD 2009
2	Using Technology to Discover and Explore Linear Functions and Encourage Linear Modeling Soucie, Tanja, Radović, Nikol, Svedrec, Renata, Car, Helena 09 May 2012 (has links) (PDF) In our presentation we will show how technology enables us to improve the teaching and learning of linear functions at the middle school level. Through various classroom activities that involve technology such as dynamic geometry software, graphing calculators and Excel, students explore functions and discover basic facts about them on their own. Students then work with real life data and on real life problems to draw graphs and form linear models that correspond to given situations as well as draw inferences based on their models. Participants will receive complete classroom materials for the unit on linear functions. Dynamische Geometrie Software (DGS) graphische Rechner Excel lineare Funktionen lineare Modellierung dynamic geometry software graphing calculators Excel linear functions linear modeling ddc:510 rvk:SD 2009
3	From Physical Model To Proof For Understanding Via DGS:Interplay Among Environments Osta, Iman M. 07 May 2012 (has links) The widespread use of Dynamic Geometry Software (DGS) is raising many interesting questions and discussions as to the necessity, usefulness and meaning of proof in school mathematics. With these questions in mind, a didactical sequence on the topic “Conics” was developed in a teacher education course tailored for pre-service secondary math methods course. The idea of the didactical sequence is to introduce “Conics” using a concrete manipulative approach (paper folding) then an explorative DGS-based construction activity embedding the need for a proof. For that purpose, the DGS software serves as an intermediary tool, used to bridge the gap between the physical model and the formal symbolic system of proof. The paper will present an analysis of participants’ geometric thinking strategies, featuring proof as an embedded process in geometric construction situations. info:eu-repo/classification/ddc/510 ddc:510
4	Using Technology to Discover and Explore Linear Functions and Encourage Linear Modeling Soucie, Tanja, Radović, Nikol, Svedrec, Renata, Car, Helena 09 May 2012 (has links) In our presentation we will show how technology enables us to improve the teaching and learning of linear functions at the middle school level. Through various classroom activities that involve technology such as dynamic geometry software, graphing calculators and Excel, students explore functions and discover basic facts about them on their own. Students then work with real life data and on real life problems to draw graphs and form linear models that correspond to given situations as well as draw inferences based on their models. Participants will receive complete classroom materials for the unit on linear functions. info:eu-repo/classification/ddc/510 ddc:510

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