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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

Learn more about the history of ERIC here. PDF icon

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Using Empirical Evidence in the Process of Proving: The Case of Dynamic Geometry
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Guven, Bulent; Cekmez, Erdem; Karatas, Ilhan – Teaching Mathematics and Its Applications: An International Journal of the IMA, 2010
With the emergence of Dynamic Geometry Software (DGS), a theoretical gap between the acquisition (inductive) and the justification (deductive) of a mathematical statement has started a debate. Some educators believe that deductive proof in geometry should be abandoned in favour of an experimental approach to mathematical justification. This…
Descriptors: Mathematical Logic, Geometry, Computer Software, Computer Assisted Instruction
Khayyam with Cabri: Experiences of Pre-Service Mathematics Teachers with Khayyam's Solution of Cubic Equations in Dynamic Geometry Environment
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Baki, Adnan; Guven, Bulent – Teaching Mathematics and Its Applications: An International Journal of the IMA, 2009
The study reported in this article deals with the observed actions of Turkish pre-service mathematics teachers in dynamic geometry environment (DGE) as they were learning Khayyam's method for solving cubic equations formed as x[superscript 3] + ax = b. Having learned the method, modelled it in DGE and verified the correctness of the solution,…
Descriptors: Preservice Teachers, Mathematics Teachers, Geometry, Mathematics Education
Using Dynamic Geometry Software to Convey Real-World Situations into the Classroom: The Experience of Student Mathematics Teachers with a Minimum Network Problem
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Guven, Bulent – Teaching Mathematics and Its Applications: An International Journal of the IMA, 2008
As any ordinary person knows, the shortest distance between two points is a straight line. What, then, is the shortest distance between three points? Four points? The study reported in this article deals with the observed actions of Turkish student mathematics teachers as they were working with minimal network problems. Having analysed the…
Descriptors: Mathematics Teachers, Geometry, Mathematics Instruction, Computer Software