Binomial Cubes

A wooden box containing 8 precisely cut cubes and cuboids that visually and physically represent the algebraic formula (a + b)³ = a³ + b³ + 3a²b + 3ab². The pieces are painted in red, blue, and black to guide proper assembly, and the lid features a color-coded diagram to support self-correction. The material also introduces children to early mathematical concepts in a sensorial, hands-on way.