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Wood & Crochet Interlocking Rings
-Stationery Tools（42 sets）
Life Cycle of Cabbage Butterfly Acrylic Specimen
Different Balls
W5011 Objects With Identical Matching Cards
Geometric Hierarchy Of Number with Cards language Wood & Crochet Interlocking RingsThis material is used to represent in geometric form the hierarchy of number for: 1, 10, 100, 1000, 10,000, 100,000 and 1,000,000. The precise nature of these materials makes it possible to compare by size the decimal categories, visualize through the color coded system the concept of decimal value and the families of number. A wooden tray for presentation of 1, 10, 100 and 1000 is included. Symbols card is included.
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