When many adults think of math, they remember symbols, formulas, and steps to memorize. So when parents first see Montessori materials, they sometimes pause and wonder: How does this kind of hands-on work lead to real mathematical understanding? One beautiful answer can be found in a classic Montessori material: the Binomial Cube . At first glance, it may look like a set of colorful wooden blocks. But in the hands of a thoughtful Montessori teacher, it becomes something much