97 Mathematics education
97Uxx Educational material and media. Educational technology (5 articles)
97U30 Teacher manuals and planning aids (1 articles)
- : Projekt „srovnávací geometrie‟ (rovina - sféra - hemisféra) [1]. (Czech) [Project of “comparative geometry” (plane - sphere - hemisphere) [1]]. Učitel matematiky, vol. 13 (2005), issue 1, pp. 1-8
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