I teach IGCSE Geography at an international school in Southeast Asia. Sectors of production was one of my best-selling lessons, but the quaternary sector barely featured and the employment data had aged badly, so I rebuilt it from scratch for 2026 with the model redrawn and every figure re-verified against World Bank and ILO data. If you bought the original, the update is free, just re-download.

What’s in it:
A complete, ready-to-teach lesson answering one big question: what do the jobs people do reveal about a country’s development? You get a full PowerPoint presentation with answers included throughout (a “four families, four jobs” starter, a job classification task, the Clark-Fisher model, a triangular-graph plotting skill using real 1991 and 2025 data, a Malaysia farms-to-firms case study, a Silicon Valley quaternary case study, and a team Job Sort Relay), a Word workbook in three versions (Full colour, printer-friendly black and white, ready-to-print PDF), and a 30-question Blooket quiz file for instant retrieval practice. Bonus access to free lesson-support activities and daily games on the Geography Oasis website.

What students learn:

• The four sectors of production and how to classify jobs into each
• How employment shifts from primary to tertiary as a country develops
• How to read and interpret the Clark-Fisher model
• How to read and plot data on a triangular graph
• Malaysia’s move from farms to factories to firms, using real data
• The rise of the quaternary sector through a Silicon Valley case study

Every figure is re-verified for 2026 against World Bank World Development Indicators and ILO modelled estimates. Also suitable for AP Human Geography, World Geography, and any economic development, industry or development unit at ages 11-16.

Format:
Delivered as fully editable PowerPoint (.pptx) and Word (.docx) files, plus PDF. Diagrams and visuals are not editable.

TEACHING CAMBRIDGE IGCSE GEOGRAPHY (0460)?
I have also rebuilt this whole topic as a complete Development unit for the 2027 syllabus: 5 modules with lesson slides, student workbooks, full answer keys and bonus interactive website access. **Start with the free sample: **/teaching-resource/resource-13453955

This is one of a growing collection of fully rebuilt 2026 geography lessons; more are on the way in my shop. If you find this useful, a review would mean a lot. It’s how other teachers discover these resources, and it helps me keep creating.