Key Stage 4 citizenship · Democracy and government

GCSE citizenship: the UK constitution, a guide for parents

The UK constitution is the set of rules that decides who holds power, how far that power reaches and how it can be challenged. Unlike many countries, the UK has no single document called “the constitution”. In Key Stage 4 citizenship, students build on what they learned about Parliament and elections earlier in secondary school, and deepen their understanding of how the whole system fits together: parliamentary democracy, the power of government, the role of citizens and the checks that keep power in line.

The UK constitution, explained

Most people picture a constitution as one document, like the one the United States has. The UK doesn’t have one. Its constitution is described as uncodified: it is spread across several sources. These include Acts of Parliament (such as the Human Rights Act 1998 and the Acts that set up the Scottish Parliament and the Welsh Senedd), court judgments known as common law, treaties, respected books of authority, and conventions. A convention is an unwritten rule that is followed out of long custom, not because a court could enforce it. For example, the monarch gives Royal Assent to every bill that Parliament passes, and the Prime Minister is the person who can command the confidence of the House of Commons.

The UK is a parliamentary democracy. Voters elect Members of Parliament (MPs) to the House of Commons, and the government is formed by the party, or group of parties, that can win the Commons’ support. The government is therefore answerable to Parliament, not the other way round. Students also learn four key ideas. Parliamentary sovereignty means that Parliament can make or change any law, and no court can strike down an Act of Parliament. The rule of law means that everyone, including ministers, must obey the law and be treated fairly under it. Constitutional monarchy means the monarch is head of state but acts on the advice of ministers. Devolution means that some powers have been passed to the Scottish Parliament, the Senedd in Wales and the Northern Ireland Assembly.

A major theme at this stage is the power of government and what holds it back. In practice a government with a Commons majority controls the civil service, sets the timetable for most new laws and usually wins the votes. Against that sit several checks: MPs and the House of Lords who question and revise legislation, courts that can rule that a minister has acted unlawfully, a free press, and voters at the next general election. Citizens have roles too: voting, serving on a jury if called, obeying the law, paying taxes and taking part in campaigns and local decisions. Your child will be expected to explain how these pieces connect, not just name them.

Because the constitution is unwritten, it is a good subject for debate, and teachers use it to build the skills the programme of study asks for: researching using a range of sources, weighing up evidence, making a persuasive argument and backing up a conclusion. A typical question is whether the UK should have a single written constitution. Arguments in favour include clarity and stronger protection for rights. Arguments against include flexibility and the worry that unelected judges would gain too much power. Teachers do not expect students to land on one view. They expect them to support whichever view they take with evidence.

Citizenship is a National Curriculum subject at Key Stage 4, and some schools also offer a GCSE in it, which is taken at the end of Year 11 and graded 9 to 1. Which political examples a school uses is its own choice. The programme of study sets the topics, not the case studies, so what your child covers may differ from a friend’s at another school.

Words your child will hear

Uncodified constitution: A constitution that isn’t gathered in one document but found in laws, court rulings, conventions and other sources.
Parliamentary sovereignty: The principle that Parliament is the highest source of law in the UK and can make or unmake any law.
Convention: An unwritten rule of politics that is followed by custom, such as the monarch always giving Royal Assent.
Rule of law: The idea that everyone, including the government, is subject to the law and treated fairly by it.
Constitutional monarchy: A system where the monarch is head of state but real decisions are made by elected politicians.
Devolution: Passing some decision-making powers from the UK Parliament to the Scottish Parliament, the Senedd and the Northern Ireland Assembly.
Statute: A law passed by Parliament, also called an Act of Parliament.

What the National Curriculum says

The programme of study for Key Stage 4 says:

Pupils should be taught about parliamentary democracy and the key elements of the constitution of the United Kingdom, including the power of government, the role of citizens and Parliament in holding those in power to account, and the different roles of the executive, legislature and judiciary and a free press
Teaching should build on the key stage 3 programme of study to deepen pupils’ understanding of democracy, government and the rights and responsibilities of citizens.
Aim: pupils acquire a sound knowledge and understanding of how the United Kingdom is governed, its political system and how citizens participate actively in its democratic systems of government.

Objectives from the National Curriculum in England, © Crown copyright, used under the Open Government Licence v3.0.

Try it: answering an exam-style question

“Explain one way the UK constitution limits the power of the government.” Plan and write a short model answer.

Choose one limit and name it precisely. Here we pick the rule of law: ministers can only do what the law allows them to do.
Explain how it works. Powers are given to ministers by Acts of Parliament. If a minister goes beyond those powers, a person or group affected can ask a court to review the decision, which is called judicial review.
Add real evidence. In 2019 the Supreme Court ruled that advice to suspend (prorogue) Parliament for about five weeks was unlawful, because it stopped Parliament doing its job without a good enough reason.
Link back to the question. Explain why this limits government power: even though the UK constitution is not written in one document, the courts can still check the government and make it act within the law.

One way the constitution limits the government is the rule of law. Ministers may only use powers that Parliament has given them, and the courts can review their decisions. For example, in 2019 the Supreme Court ruled that suspending Parliament for about five weeks was unlawful because it stopped Parliament doing its job without good reason. This shows that, although the UK constitution is not written in one place, the government cannot ignore the law, because an independent court can overturn its decisions.

Common mistakes and how to help

“The UK doesn’t have a constitution.”

Students hear that it is “unwritten” and take that to mean there are no rules. Most other countries they meet in lessons have one document, so the UK looks like the odd one out.

What helps: Say “uncodified” rather than “unwritten”. Most of the rules are written down, just in many places. Ask your child to name three sources, such as an Act, a court ruling and a convention.

Thinking voters choose the Prime Minister directly

Election campaigns focus on party leaders, so it feels as if the leader is on the ballot paper. In fact each voter chooses a local MP, and the Prime Minister is the person who can command the confidence of the Commons.

What helps: Ask who is on the ballot paper in your constituency. It helps to compare with systems where the head of government is voted for directly.

Mixing up parliamentary sovereignty with the government’s power

News stories say “the government has passed a law”, so students assume sovereignty belongs to the government. Sovereignty belongs to Parliament as a whole, and the government needs Parliament’s support to make laws.

What helps: Follow one bill and ask where the government can be outvoted. Remind your child that courts can still rule that a minister has acted unlawfully, even though they cannot strike down an Act.

Believing conventions can’t matter because they aren’t law

If no court can enforce a rule, it seems optional. Yet conventions shape almost every part of how government works.

What helps: Use Royal Assent: it has not been refused since 1708. Ask what would happen politically if a monarch refused, and why that shows a convention can be stronger in practice than a written rule.

How to help at home

Ask “who has the power to decide this?”. When a news item comes up, ask whether the decision belongs to the government, Parliament, a court, a devolved parliament or a local council. Teenagers often find that the honest answer is “it depends”, which is exactly the point of the topic.
Write a family constitution. Draft five rules for how your household makes decisions and how those rules can be changed. Ask which rules are written down, which are just habit, and what happens when someone breaks one. It makes the difference between laws and conventions concrete.
Watch part of a debate or committee. Proceedings in Parliament can be watched live or later online. Ten minutes is enough to spot the Speaker, ministers answering questions and the opposition challenging them, and to ask your child what role each person is playing.
Debate a written constitution. Take turns arguing for and against a single written constitution for the UK, then swap sides. Ask your child to back every point with an example, which is the skill that earns marks in citizenship.

Builds on

Key Stage 3: How UK democracy developed
Key Stage 3: Citizens, Parliament and the monarch
Key Stage 3: How Parliament works
Key Stage 3: Voting and elections
Key Stage 3: The role of political parties