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Kindermatic Montessori Trinomial Cube 蒙特梭利 三項式
Kindermatic Montessori Trinomial Cube 蒙特梭利 三項式
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Kindermatic Montessori Trinomial Cube 蒙特梭利 三項式
教具構成：一個盒子，內有27個小棱柱體，呈現方程式
(a+b+c)3=a3+3a2b+3a2c+b3+3ab2+3b2c+c3+3ac2+3bc2+6abc
盒蓋以平面的形式呈現該模式。材質：櫸木。包裝方式：白盒。包裝尺寸：14*14*12cm
27 painted wooden cubes in a wooden box with a lid. The box is hinged and opens out to display the cubes. The lid is printed with the trinomial square pattern.
• Dimensions: 5.5 x 5.5 x 4 inches
• Recommended Ages: 3.5 years and up
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