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The UK School System Explained: A Guide for International Families on Public, Private, and International Schools

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2026 Latest
英国の学校システム完全ガイド|パブリックスクール、私立、インターの違いと日本人生徒の選び方 - ELT英会話 英語学習コラム
Tatsuya Tanaka

Author: Tatsuya Tanaka|Representative Director, ELT Japan

When planning a move to the UK for work or for your child to study abroad, many parents are first confronted with the complexity of the school system.

  • You thought a "Public School" was state-funded, but it's actually a highly prestigious private institution.
  • Can children of expatriates attend a "State School" for free?
  • If your child is not yet fluent in English, is an "International School" or a local private school a better choice?

The UK's education system, due to its historical background, uses unique terminology (like "Public School"), which can easily lead to misunderstandings.

In this article, we will clarify the differences between the realistic options for international students in the UK: traditional boarding schools, private day schools, and international schools. We will also explain how to choose the best option based on your child's personality and future academic goals, whether they plan to attend university in the UK, Japan, the US, or elsewhere.

1. Understanding the Types of Schools in the UK

First, let's unravel the "verbal traps" within the UK school system's terminology.

① Public School

Meaning: "The most traditional and prestigious private schools."

Examples: Eton College, Harrow School, Rugby School

This is the biggest point of confusion. Despite the word "Public," these are not state-funded schools. The name originates from their history of being open to anyone ("publicly"), regardless of religion or location. Today, the term typically refers to "The Nine" original public schools and other similarly prestigious institutions.

② Independent School / Private School

Meaning: "An independent (not state-funded) private school."

While public schools are technically a type of independent school, this term generally refers to a broader range of private institutions. There are about 2,500 such schools across the UK, known for their small class sizes and high level of academic support.

③ State School

Meaning: "A state-funded public school."

Tuition is free. Children of expatriates (with the appropriate visa) can attend, but there are strict residential restrictions based on catchment areas. The quality of schools can vary significantly (as per Ofsted ratings), so thorough research is essential for international families.

④ International School

Meaning: "A school that offers a non-British curriculum (such as the IB or an American-style program)."

Many are located near London and are characterized by a highly diverse, multinational student body. They are popular with families on short-term assignments and students from non-English speaking backgrounds because they allow students to study the International Baccalaureate (IB) or an American curriculum while living in the UK.

2. Comparison: Which is the Best Fit for Your Child?

The "right answer" depends on your child's English proficiency, the length of your stay, and their future university aspirations.

School Type

Traditional Boarding Schools

International Schools

Main Curriculum

GCSE / A-Level
(British system, specialized)

IB (PYP/MYP/DP) / American System
(Inquiry-based, holistic)

Student Body

Predominantly British students.
International students make up about 20-30%.

Multinational (children of expatriates, etc.).
Fewer British students.

English Support (EAL)

Varies by school, but classes are taught with the assumption of fluency.
EAL is treated as remedial support.

Very strong and comprehensive.
Support for non-native English speakers is standard.

University Progression

Extremely strong for admission to Oxbridge and top UK universities. The preferred choice for aspiring medical students.

Opens doors to universities worldwide. The IB is highly regarded in Europe, North America, and Japan.

Best Suited For

Long-term stay / solo study abroad

・Students who want to immerse themselves in British culture

・Students serious about sports and the arts

Short-term assignments (returning home in a few years)

・Students who are still developing their English skills

・Students who want a balanced, multi-subject education with the IB

Advice for Expatriate Families

Many families think, "Since we're in the UK, we should send our child to a local independent school." However, caution is advised for transfers into Year 10 (age 14) or above.

The British GCSE curriculum is a two-year course, making mid-course transfers difficult. In such cases, transitioning to an International School (IB school) may be smoother.

3. The Reality of Entrance Exams (UKiset / Common Entrance)

When aiming for the UK's top schools, their unique entrance exams are an unavoidable hurdle.

Common Entrance

This is a standardized exam for entry into public schools at age 11 (for girls) or 13 (for boys).

In addition to English, Maths, and Science, subjects like History, Geography, Religious Studies, and Latin may be included. A high level of English proficiency is required to compete on "a level playing field with local students."

UKiset

This is an adaptive cognitive test designed for international students.

It consists of sections on English (Listening and Reading), Maths, and Non-Verbal Reasoning (similar to an IQ test). It measures not just English ability but also academic potential. Many boarding schools use it as a preliminary screening tool for international applicants.

4. Boarding Life and the Guardian System

For students studying abroad alone or attending a boarding school away from their parents, UK law requires the appointment of a "Guardian."

  • Role of a Guardian:

    They act on the parents' behalf in emergencies, arrange accommodation during half-term breaks, and serve as a point of contact with the school.

  • Choosing a Guardian:

    Don't just leave it to an agent. Confirm that they live close enough to reach the school quickly in an emergency and check if they can provide detailed support in your native language.

Boarding life (the House System) is more than just a place to sleep; it's a formative environment for character development. Much like in the world of Harry Potter, students form lifelong friendships through inter-house sports competitions and music festivals.

5. Conclusion: How to Bridge the English Proficiency Gap

The most critical factor in choosing a school in the UK is accurately assessing the gap between your child's current English level and the level required by their target school.

  • International Schools: Can accommodate lower English levels with strong EAL (English as an Additional Language) support.
  • Traditional Boarding Schools: Without near-native English proficiency at the time of entry, there's a risk of students falling behind and struggling to keep up in class.

"We want to get into a top UK school, but we're worried about English proficiency." "My child's UKiset score isn't improving."

If you have these concerns, seeking expert support is the most effective path forward.

ELT | UK School Selection & Entrance Exam Prep

ELT is an online school specializing in international education, founded in London with 40 years of experience.

  • UKiset / Common Entrance Prep: Instruction from native-speaking tutors who are experts on the exam formats of top-tier UK schools.
  • School Selection Consulting: We recommend the most suitable schools (from Prep School to Senior School) based on your child's personality and English level.
  • Post-Enrollment Academic Support: Tutoring in subjects where international students often face challenges, such as History and Geography.

An education in the UK is an opportunity that can greatly broaden your child's future.

Let's start by understanding your child's current academic level.

About the Author

Tatsuya Tanaka

Tatsuya Tanaka

Representative Director, ELT Japan

After graduating from the Department of Mechanical Engineering at the Faculty of Science and Engineering, Waseda University, he pursued graduate studies at the same university, focusing on research in computational fluid dynamics. During his graduate studies, he worked as a visiting researcher at Rice University in Houston, USA, where he was involved in fluid simulations for spacecraft. After returning to Japan, while continuing his research, he also organized career fairs at Harvard University and Imperial College London. In 2019, while still a student, he established Sekijin LLC (now ELT Education Inc.). In 2020, he partnered with the UK-based company ELT School of English Ltd. to launch an online English conversation business for the Japanese market. Since its founding, he has provided counseling to over 1,000 English language learners.

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