This material introduces children (typically ages 4–6) to the decimal system through hands-on work with golden bead quantities — units, tens, hundreds, and thousands — presented on organized trays that support purposeful layout and clear three-period lesson sequencing. The tray structure keeps quantities distinct and accessible, making it easier to guide individual or small-group presentations without managing loose materials across a work rug. It pairs directly with the symbolic materials for later exchange and quantity-symbol association work, and is an essential addition to any Lower Elementary or advanced Casa environment building toward the full decimal system sequence.