Good Learning Co.
SavannahYear 8
← Geography
GeographyGCSE the changing economic world30 min★★★ difficulty

Measuring development and the development gap

GNI per head is only one measure and often a misleading one. This lesson covers the indicators, the demographic transition and the causes of uneven development.

Lesson overview

What you'll learn in this lesson

Explain development gaps, strategies to reduce them and economic change in the UK.

Key learning points

  • • Indicators and their limits
  • • The demographic transition model
  • • Causes of uneven development
  • • Consequences

This lesson at a glance

  • 30 minutes
  • 17 parts to scroll through
  • 4 quick checks
  • Marked quiz at the end
  • Gentle pace: short sittings with pauses

Words to know

developmentstrategiesreduceeconomicchange

Scroll down — the lesson carries on below

Part 1 of 17 · Discover6%
1

Watch & discover

Part 1 of 17

Watch first

Measuring development and the development gap

An English teaching video on this topic from Mr B. Watch it, then scroll down for the lesson.

In a nutshell

Explain development gaps, strategies to reduce them and economic change in the UK.

2

Learning cycle

Part 2 of 17

Learning cycle 1 of 2

Part 1 · Indicators and their limits

A short piece of teaching, then a check to make sure it has landed.

3

Explore the idea

Part 3 of 17

Learn

Indicators and their limits

GNI per head, birth and death rates, infant mortality, life expectancy, literacy and access to safe water each capture something different. Averages hide inequality, so composite measures such as the Human Development Index — income, education and life expectancy combined — give a fuller picture.

4

Explore the idea

Part 4 of 17

Learn

The demographic transition model

Five stages from high fluctuating birth and death rates through falling death rates, then falling birth rates, to low fluctuating rates and possible natural decrease. Use it to explain why population structures differ, not just to describe the curve.

5

Quick check

Part 5 of 17

Quick check

Which measure combines income, education and life expectancy?

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Quick check

Part 6 of 17

Quick check

At which stage of the demographic transition does the death rate fall first?

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Learning cycle

Part 7 of 17

Learning cycle 2 of 2

Part 2 · Causes of uneven development

A short piece of teaching, then a check to make sure it has landed.

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Reset break

Part 8 of 17

Pause

That's sitting 1 of 2 done

Stretch, get a drink, look out of the window. There is no timer and nothing is counting down — your place is saved, so you can come back in five minutes or tomorrow.

Stop here for now
9

Explore the idea

Part 9 of 17

Learn

Causes of uneven development

Physical causes include landlocked position, climate-related disease and natural hazard exposure. Economic causes include trade terms, debt and reliance on primary exports. Historical causes include colonialism and conflict. Strong answers link two together rather than listing.

10

Explore the idea

Part 10 of 17

Learn

Consequences

Disparities in wealth and health, and international migration as people move towards opportunity. Consequences feed back into causes, which is why development gaps are persistent rather than self-correcting.

11

Quick check

Part 11 of 17

Quick check

Which is a historical cause of uneven development?

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Quick check

Part 12 of 17

Quick check

Why is GNI per head misleading in an unequal country?

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Explore the idea

Part 13 of 17

Worked example

Model answer: 'Explain why GNI per head alone is a limited measure of development' (4 marks)

GNI per head is an average, so it conceals inequality: a country with a small, very wealthy elite can record a moderate figure while most of the population lives in poverty. It also measures only recorded monetary income, excluding subsistence farming and informal work that support many households. Because it says nothing about health, education or freedom, two countries with similar GNI can differ sharply in quality of life, which is why composite measures such as the HDI are preferred.

14

Challenge round

Part 14 of 17

Game · Sort it

Which of these are true?

Drag each card into the right column. Tap a card first if dragging is fiddly.

True

Not true

15

Challenge round

Part 15 of 17

Game · Fill the gaps

Finish the sentences

Choose the word that belongs in each gap.

Averages hide inequality, so composite measures such as the Human ____ Index — income, education and life expectancy combined — give a fuller picture.

____ causes include trade terms, debt and reliance on primary exports.

16

Mastery quiz

Part 16 of 17

Marked quiz

End of lesson quiz: Measuring development and the development gap

4 questions, marked with the reasoning shown. No timer.

  1. 1. Which measure combines income, education and life expectancy?

  2. 2. At which stage of the demographic transition does the death rate fall first?

  3. 3. Which is a historical cause of uneven development?

  4. 4. Why is GNI per head misleading in an unequal country?

17

Lesson round-up

Part 17 of 17

Lesson round-up

Ready when you are

Quiz score

Not sat

Games

Not played

Points this lesson

0

Best run

0 in a row

Luna: 0 out of 4 on the practice checks. Only if you feel up to it — one more?

Ask Luna

Do the work

Your written work for this lesson

This is the part you'd do in your book at school. Pick the pieces below, write here or on paper, and photograph anything you draw or work out.

Case study

Flooding on the River Calder

The town of Harbrook sits where a steep valley opens onto a flat floodplain. In December 2015, 120 mm of rain fell in 36 hours onto ground that was already saturated. The river rose 2.4 m in five hours, and 380 homes and 54 businesses flooded. Two roads and the railway closed for eleven days.

Geographers pointed to physical causes — steep slopes, impermeable rock, heavy rainfall — and human causes: moorland drained upstream, new housing built on the floodplain, and drains designed for smaller storms.

Since then the town has planted 40 hectares of woodland upstream, built leaky dams in small streams, and raised flood walls to 1.8 m. In the storm of 2020 the peak river level was 0.3 m lower and 40 homes flooded, not 380.

Written for Good Learning Co.

Reading questions

  1. List two physical and two human causes of the 2015 flood.
  2. Explain how planting woodland upstream lowers the river's peak level.
  3. Using the figures, judge how successful the scheme has been. Quote data in your answer.

  • Case study notes

    Writing

    Write the place, the facts and the figures from this lesson so you can revise them later.

    Half a page

  • Explain answer

    Writing

    Answer in full sentences, giving causes and effects. Use one figure or place name as evidence.

    8–10 sentences

  • Map or sketch

    Diagram

    Draw the map, cross-section or field sketch with a key, title and labels, then photograph it.

    1 map with a key

  • Data work

    Working out

    Plot your figures as a graph on paper and write one sentence about the pattern.

    1 graph + 1 sentence

Saved as you type.

Part 1 of 17 · Watch & discover

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