As a teacher, you can make interlinkages while discussing 'Iron smelters and…

Concept

Interdisciplinary teaching links a theme studied in one subject to chapters in another subject that explain the same underlying phenomenon. A History theme about iron-making and factories is, at its core, the story of turning a natural resource into a manufactured good. To trace that story through geography you follow the resource itself: where the raw material is formed, what that raw material is, and how it is turned into products. The geography chapters that map onto those three steps are the ones that build the interlinkage.

Applying it to this theme

'Iron smelters and factory owners' is about converting iron into goods in factories. Trace the resource through the geography chapters:

• Inside our Earth — metallic minerals such as iron ore are formed in, and dug out of, the rocks of the Earth's crust, so this chapter explains where the raw material originates.

• Mineral Resources — iron ore is itself a mineral resource, so this chapter names and describes the raw material that is fed into the smelter.

• Industries — a smelter and a factory ARE industries, so this chapter is the direct, same-domain link about how that raw material is processed into finished goods.

Cross-check / contrast

Reading the chain in order — origin of the ore, the ore as a resource, and the industry that processes it — the three geography chapters that complete the interlinkage are Inside our Earth, Mineral Resources and Industries. In the option labelling used in the stem these are D, A and B, so the correct combination is 'A, B and D'.