مكعب ثنائي الحد (ملون)

The Binomial Cube improves a child¡¯s understanding of three dimensional puzzles, prepares a child for algebraic concepts, and improves concentration, coordination, independence, and problem solving skills. 
8 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 binomial square pattern.