Geography · Grade 12

Trade, Mobility and Global Networks

Goods, people and money move through networks with hubs, corridors and chokepoints. Learners measure hub importance with degree and betweenness centrality, explain the geography of container shipping and air hubs, analyse disruptions such as the March 2021 Suez Canal blockage and later rerouting around Africa, and examine migration corridors and remittances, including their costs and the dependence of some economies on them.

4 lessons
About 125 minutes
Global networks check: 11 questions
Ways to answer: choose an answer, highlight a text, pin a map, pick map regions, match pairs and type a number

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What learners will discover

Analyse network structure using hubs, hub-and-spoke and point-to-point designs, and degree and betweenness centrality.
Explain the geography of container shipping and air networks, including transshipment hubs and containerisation.
Evaluate the effects of chokepoint disruptions and strategies for supply-chain resilience.
Analyse migration corridors and remittance flows, including transfer costs and economic dependence.