Checker Board Beads (C314) are the bead set used with the Checkerboard for multi-digit multiplication work in the lower elementary environment, allowing children to concretely represent and combine partial products during long multiplication. Having a full, well-stocked set is essential because the work requires precise quantities across multiple place-value columns, and shortages interrupt the child's ability to complete problems independently. This is a necessary consumable replenishment item for any lower elementary classroom running a complete math curriculum.