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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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Papadopoulos, Ioannis; Dagdilelis, Vassilios – International Journal for Technology in Mathematics Education, 2006
In this paper, difficulties of students in the case of computer-mediated teaching of geometry in a traditional classroom are considered within the framework of "transactional distance", a concept well known in distance education. The main interest of this paper is to record and describe in detail the different forms of "distance" during students'…
Descriptors: Distance Education, Educational Technology, Geometry, Computer Assisted Instruction