Plotnikova Tatyana Vladimirovna mathematics teacher at MKOU "Secondary School No. 1 of the city of Suzdal"...
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Mathematical mosaic Problems with matches
Plotnikova Tatyana Vladimirovteacher of mathematics at Moscow Educational Institution "Secondary School No. 1 in Suzdal" Presentation on the topic...
0 3k 0August 18, 2011