The Montessori Binomial Cube and the Trinomial Cube.
Let’s start with the “Bi-s.”
When the Binomial Cube material is introduced in the Children’s House, it’s presented as a sensorial three-dimensional puzzle, focusing on patterns and relationships. It lays the foundation for cubing later on in the Montessori Elementary experience. The formula for (a+b) cubed is never discussed, pointed out or made reference to in the Primary environment, but the foundation is poured!
The Binomial Cube in the Primary Classroom:
The Binomial Cube in the Elementary Classroom, learning the algebraic expression and understanding what each cube and rectangular prism represents:
The Trinomial Cube in the Children’s House is again presented as a sensorial puzzle:
The Trinomial Cube with expanded notation for (a + b + c) cubed for the Elementary student: