In 2015, 193 countries committed to achieving the UN's 17 Sustainable Development Goals (SDGs), a shared vision of humanity that provides the missing piece of the globalisation puzzle. The extent to which that vision becomes a reality will depend on today's classrooms; and it is educators who hold the key to ensuring that the SDGs become a real social contract with citizens. Goal 4, which commits to quality education for all, is intentionally not limited to foundation knowledge and skills such as literacy, mathematics and science, but places strong emphasis on learning to live together sustainably. But such goals are only meaningful if they become visible. This has inspired the OECD Programme for International Student Assessment (PISA), the global yardstick for educational success, to include global competence in its metrics for quality, equity and effectiveness in education. PISA will assess global competence for the first time ever in 2018. In that regard, this framework provides its conceptual underpinning.