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The third introduces gradation from rough to smooth
A pair of scalene right-angled triangles
thousands of bits 16
The Colored Counting Bars correspond in length and color to the Cubing Material
-Fruits（32 sets）
Geometric Hierarchy Of Number with Cards classroom furniture The third introduces gradation fromThis 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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