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7-piece set
Washing Cloth (Blue) includes ：
The knobbed cylinders introduce the visual discrimination of size
G030-1 : Map of North America
BASE 10: 1 cube
Theorem Of Pythagoras Sensorial 7-piece setThis set of material represents three cases of the Theorem Of Pythagoras. In the first, 2 sides of the triangle are equal; in the second, the sides of the triangle are in the proportion of 3: 4: 5; and in the third, the general case (the Euclidean demonstration) is shown. The material consists of 3 green metal plates with bottoms and blue, red, yellow and white inset pieces.
