A (also known as an arithmetic rack or calculating frame) is a powerful math manipulative designed to help children build foundational number sense. Developed by Adrian Treffers in the Netherlands, it translates to "calculating frame" and serves as a visual and tactile bridge between concrete counting and abstract mental math. Key Benefits of Using a Rekenrek
: By repeatedly working with the physical beads, children develop mental images that lead to automaticity in arithmetic.
: While primarily for early years, it can be used for more advanced concepts like place value, rounding, and even basic fractions. Common Types to Buy What is a rekenrek? | White Rose Education