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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.
Trinomial: a wooden box built grouped into 27 geometric three-dimensional cubes. Cover the upper surface and side paint color and three-dimensional box corresponding color of the surface (can be used as the trinomial (a + b + c) 3 of the algebra of teaching aids.)
Imports of high-grade solid wood (beech), environmental quality paint, surface treatment.
Shrink film + white box
1Cultivate the visual ability to distinguish the three-dimensional
2 Develop the thinking skills of mathematics.
3Indirectly prepare for the three pre-algebra teaching aids