ανακατασκευή και μετάφραση του: Area of Circles (2) 圓的面積 http://www.geogebratube.org/material/show/id/27562
Θεσσαλονίκη
Ιούνιος 2014
sonom
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- Target Group (Age)
- 13 – 15
- Language
- Greek / Ελληνικά
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