science

List of countries by past fertility rate

List of countries by past fertility rate is a science topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand List of countries by past fertility rate rather than just read about it. In short: This is a list of countries showing past fertility rate, ranging from 1900 to 2015 in five-year periods, as estimated by the World Population Prospects database by the United Nations Population Division and Our World in Data. The fertility rate equals the expected number of children born per woman in her child-bearing years.

Key takeaways

List of countries by past fertility rate belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect List of countries by past fertility rate to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of List of countries by past fertility rate from memory before moving on to harder problems.

Reference excerpt

This is a list of countries showing past fertility rate, ranging from 1900 to 2015 in five-year periods, as estimated by the World Population Prospects database by the United Nations Population Division and Our World in Data. The fertility rate equals the expected number of children born per woman in her child-bearing years.

List of countries

1900–1950

1950–2015

2015–

List of regions

1900–1950

1950–2015

References

External links United Nations, Department of Economic and Social Affairs – Population Division – World Population Prospects, the 2017 Revision

Illustrations

Worked examples

Example 1 — a first encounter with List of countries by past fertility rate

Start with the simplest possible case. Write down what List of countries by past fertility rate claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to List of countries by past fertility rate before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about List of countries by past fertility rate ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of List of countries by past fertility rate

In research: List of countries by past fertility rate appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses List of countries by past fertility rate in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: List of countries by past fertility rate is common in secondary-school and first-year university syllabi. It links to neighbouring topics Fertility, Human geography, Lists of countries, so understanding it makes those chapters shorter.
In everyday life: Look for List of countries by past fertility rate outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study List of countries by past fertility rate in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what List of countries by past fertility rate means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain List of countries by past fertility rate out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is List of countries by past fertility rate in simple terms?

Why does List of countries by past fertility rate matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study List of countries by past fertility rate?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on List of countries by past fertility rate.