Curriculum Guide · Ages 3–18

What Is the British Curriculum (IGCSE and A-Levels)?

How British-style education is organized, how IGCSEs and A-Levels are graded, which universities recognize them, and whether this pathway fits your child.

Read time: 9 min

The Short Answer

The British curriculum is a structured pathway from Early Years to age 18, organized into key stages.
At about age 16, students take IGCSEs. These are exams in a broad mix of subjects, usually studied over two years.
From 16 to 18, students specialize in A-Levels, typically three or four subjects chosen for their future university course.
Exam boards set the exams. International schools mainly use Cambridge, Pearson Edexcel or Oxford AQA, so the details can differ by school.
It suits students who know their strengths. Depth in a few subjects is the main feature, and it links most directly to UK universities.

What Is the British Curriculum?

The British curriculum is the education system of the United Kingdom, adapted for schools around the world. Most families who talk about it in an international school mean the two qualifications at the end of secondary school: the International General Certificate of Secondary Education (IGCSE) at around age 16, and A-Levels at 18. Younger children follow a primary program built on the same structure, starting with the Early Years Foundation Stage (EYFS) and the British primary curriculum.

The IGCSE was designed with international students in mind, and A-Levels are offered by international exam boards alongside the UK ones. As a result, students from many countries follow the British curriculum, not only British families.

How the British Curriculum Is Structured

British education is organized into key stages. Schools overseas usually describe students by Year group instead of age, with Year 1 beginning around age 5 or 6.

Key Stages

Age ranges are approximate and vary slightly by school.

Early Years (ages 3 to 5): Learning through play, language and early number skills, covered in our EYFS guide.
Key Stages 1 and 2 (ages 5 to 11): Primary school: English, mathematics, science and a wide range of other subjects, usually with one main class teacher. See the British primary guide.
Key Stage 3 (ages 11 to 14): The first years of secondary school. Students study a broad set of subjects with specialist teachers and build the skills needed for exam courses.
Key Stage 4 (ages 14 to 16): Students study for IGCSE exams, usually over two years, in a mix of compulsory and chosen subjects.
Key Stage 5 (ages 16 to 18): Students specialize in A-Levels, usually three or four subjects, studied over two years.

IGCSE: The First Big Exam Stage

IGCSE courses typically start at about age 14 and end with exams at 16. Students study a range of subjects: English, mathematics and sciences usually form the core, and the rest are chosen from options such as history, geography, languages, business, computer science and the arts. The aim is a broad education before students begin to specialize.

IGCSE results decide which A-Level subjects a student can take and, increasingly, how universities and employers see a student's early record. Courses are mostly assessed by written exams at the end of the two years, although some subjects also include coursework or practical assessment.

A-Levels: Depth in a Few Subjects

A-Levels are the final stage of the British system. Students narrow their studies to three or four subjects, often connected to their intended university course: for example mathematics, physics and chemistry for engineering, or history, English literature and economics for law. The workload is demanding and expects much independent study, and universities use the results as a central measure of readiness.

In many international schools, students may also sit AS Levels, which cover the first year of the A-Level content, either as a stand-alone qualification or as the first step toward the full A-Level. Ask the school how it organizes this, as options depend on the exam board.

Popular A-Level subjects

Subject choices differ between schools and exam boards.

Sciences: Biology, Chemistry, Physics
Mathematics: Mathematics, Further Mathematics
Humanities and social sciences: History, Geography, Economics, Psychology, Business
Languages and literature: English Literature, English Language, Chinese, French, Spanish
Arts and technology: Art and Design, Computer Science, Design and Technology

How IGCSEs and A-Levels Are Graded

Grading scales

Check which scale your child's school and exam board use, because they are not interchangeable at a glance.

IGCSE: Grades are given either on the traditional A* to G scale or on the newer 9 to 1 scale, where 9 is the highest. Cambridge International lets schools choose between the two systems, while Pearson Edexcel and Oxford AQA International GCSEs use 9 to 1.
A-Level: Graded from A* (highest) to E. This scale has stayed the same.

Pass marks depend on the university or employer. As a rough guide, grade C on the old scale corresponds to a grade 4 on the 9 to 1 scale, and grade 5 is often described as a strong pass, but entry requirements for universities and courses vary, so always check them. For many university courses, specific A-Level grades in particular subjects are conditions of an offer.

Exam Boards

The British curriculum is not examined by one single body. Schools choose an exam board for their IGCSE and A-Level courses. The three most common in international schools are:

Main exam boards

Syllabuses and assessments differ slightly between boards, so ask your school which it uses.

Cambridge International: Offers Cambridge IGCSE and Cambridge International AS and A Level. Widely used in international schools.
Pearson Edexcel: Offers International GCSE and International Advanced Level.
Oxford AQA: Offers International GCSE and International A-Level.

University Recognition

A-Levels are the standard entry qualification for UK universities, which make offers on A-Level results, often in specific subjects. They are also recognized by universities in many other countries, including the U.S., Canada and Australia, and in Europe and Asia. Students aiming for the U.S. may add an admissions test such as the SAT, and each university sets its own policy on how to treat A-Level results. Always check the entry requirements of the countries and courses you are considering.

Benefits and Trade-offs

What the British pathway offers

Clear progression: The key stages create a predictable path from early years to university.
Depth: Studying three or four subjects at A-Level builds deep subject knowledge and independent study skills.
International design: The IGCSE was built for international schools, which makes it easy to join the pathway from another system.
Early specialization: Narrowing to a few subjects at 16 suits students who know what they want to study. Students who are undecided may find the choice limiting.
Exam focus: Final exams carry great weight, so the pressure at exam time can be high.

British, American or IB?

How the main curricula compare

All three are widely respected. The right choice depends on where your child may study and how they prefer to learn.

British (IGCSE and A-Levels): Broad at 14 to 16, then focused on three or four subjects. Strongest link to UK universities.
American: Broad and flexible, with electives and optional AP courses. See the American curriculum guide and the AP guide.
International Baccalaureate: Six subjects plus a required core in the Diploma Programme. See the IB guide and the Diploma Programme guide.

Is the British Curriculum Right for Your Child?

The British curriculum suits students who like structure, who have clear academic strengths and who are comfortable being tested through exams. It is a natural choice if your family is considering UK universities, or if your child already follows the British system and you expect to move between British-style schools.

Students who want to keep subjects open until the last moment, or prefer continuous assessment, may do better with the American or IB approach. When you visit schools, look beyond the label at the teaching, class sizes and results.

Questions to Ask a School

Which exam board do you use for IGCSE and A-Level?
Do you grade IGCSEs on the A* to G or 9 to 1 scale?
Which A-Level subjects do you offer, and what are the entry requirements?
Do you offer AS Levels?
What were your most recent IGCSE and A-Level results, and where do graduates go?
How do you support students who join in Year 10 or Year 12?

The British Curriculum in Guangzhou

British-style international schools in Guangzhou offer the British curriculum, often from the EYFS through primary and on to IGCSE and A-Levels. Before you apply, ask which exam boards the school uses, which A-Level subjects it offers and where recent graduates have gone to university. Ask too how new students are placed, since British year groups follow age and may differ from your child's current grade.

If your child is younger, compare the options in EYFS vs IB PYP in Guangzhou. For help comparing schools, read Choosing an International School in Guangzhou: Parent Guide.

Frequently Asked Questions About the British Curriculum

What is the difference between GCSE and IGCSE?: The GCSE is the qualification taken in UK schools, while the IGCSE is designed for international schools and is offered by exam boards such as Cambridge International and Pearson Edexcel. Both lead to A-Levels.
What is the difference between IGCSE and A-Levels?: The IGCSE is taken at about age 16 across a broad range of subjects, while A-Levels are taken at 18 in three or four subjects chosen for depth.
How many A-Levels should a student take?: Most students take three, and some take four. Universities usually make offers based on three A-Levels, so a fourth is optional.
How are IGCSEs and A-Levels graded?: IGCSEs are graded A* to G or on a 9 to 1 scale, depending on the exam board and school, while A-Levels are graded A* to E.
Are A-Levels recognized outside the UK?: Yes. They are accepted by universities in many countries, including the U.S., Canada, Australia, Europe and Asia, though each university sets its own requirements.
Is the British curriculum harder than other systems?: It depends on the student. A-Levels are demanding because they require deep focus on a few subjects, but students who love their chosen subjects often thrive. The IB Diploma and AP are comparably demanding in different ways.
Can students switch to the British curriculum from other systems?: Yes. Many students join at the start of the IGCSE or A-Level years, and the IGCSE is designed for international students. Ask the school how it assesses new students and whether they need to catch up on any subjects.
Which exam boards do international schools use?: The most common are Cambridge International, Pearson Edexcel and Oxford AQA. Ask your school which one it follows.
Can students apply to U.S. universities with A-Levels?: Yes. U.S. universities accept A-Levels, and students often also take the SAT or ACT, depending on the universities' policies. Check each university's requirements.
Which schools in Guangzhou offer the British curriculum?: British-style international schools offer it, usually from the early years through IGCSE and A-Levels. Check the school profiles on this site and ask each school which exam boards and subjects it offers.