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 list of key terminology should be added to as you progress through this part of the course. Each sub topic is colour coded and you should complete the definitions at the start of each sub topic.

1. Measuring global interactions

2. Changing space - The shrinking world

3. Economic interactions and flows

4. Environmental change

5. Sociocultural exchanges

6. Political outcomes

7. Global interactions at the local level