Publishers often produce comprehensive math programs, assuming more content means better value. Yet international schools frequently allocate less time for math than standards like the Common Core recommend. As a result, many practitioners feel overwhelmed, wondering: “What’s truly important? What can we cut? Can we still explore ideas deeply if we reduce content?” Meanwhile, the PYP is sometimes criticized for offering good ideas but lacking grade-level support. This workshop presents a clear Number progression from Kindergarten to Grade 6, drawing on WA First Steps, Numicon Essentials, the NZ Numeracy Project, and the current (2018) PYP Mathematics Scope and Sequence. It will also align with forthcoming updates. Participants will see practical examples of each conceptual stage through interactive materials, warm-up games, and videos illustrating how learning unfolds at each level. In addition, the session provides “ready to use tomorrow” activities for both assessment and teaching. Ultimately, this framework helps educators streamline content, focus on deeper understanding, and address the real question: what truly matters in math instruction?