The study of global interactions in this syllabus has a broader perspective than a more conventional study of globalization that emphasizes a linear process involving the domination and the imposition of western culture on the world. In the context of this syllabus, global interaction suggests a two-way and complex process whereby cultural traits and commodities may be adopted, adapted or resisted by societies. The process is neither inevitable nor universal.

The HL extension theme focuses on the global interactions, flows and exchanges arising from the disparities that exist between places. It presents important and contestable geographic issues of change in space and time for the HL student to question. This part of the syllabus is divided into seven topics relating to global interactions as outlined above. Each topic has a conceptual base that is developed through the content.