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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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Capturing Congruence with a Turtle.
Peer reviewed Peer reviewed
Zaskis, Rina; Leron, Uri – Educational Studies in Mathematics, 1991
The LOGO subroutine turtle geometry and Euclidean geometry are compared with respect to their treatment of similarity and difference of plane figures. The problem and its proposed solution of introducing a FLIP operation are viewed briefly from the perspectives of mathematics, computer science, and education. (MDH)
Descriptors: Classroom Techniques, Computer Assisted Instruction, Computer Software Development, Geometry