Early Years Sensorial 2 Kit
The Trinomial Cube, one of the most recognizable Montessori materials, is a physical representation of the formula (a + b + c) to the power of 3. With this material, the child explores how the pieces relate to one another in terms of their dimensions, shapes, and colors. It is a puzzle that the child can tackle in stages of increasing challenge; for example, by matching pieces to the box lid, building one layer at a time, or building it outside the box.
Practice with the Trinomial Cube provides the child with a concrete experience of a foundational mathematical term, one that they will relate back to repeatedly in mathematical explorations later in the Montessori Elementary program. This hands-on experience helps to ground the child’s understanding of early algebraic concepts because they know how the terms relate to one another.
This material includes:
- 27 wooden, painted prisms inside a hinged, wooden box with lid
Watch this video from our Homeschool Album which introduces the initial presentation for the Trinomial Cube.