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International Elementary School in Japan: A Comprehensive Guide to Making the Right Choice

Updated:
Published:
2026 Latest
【徹底解説】インター小学校、行くべき?やめるべき? - ELT英会話 英語学習コラム
Tatsuya Tanaka

Author: Tatsuya Tanaka|Representative Director, ELT Japan

A Guide for Parents Navigating the Transition from Preschool to Elementary School

"After all the progress my child made speaking English at preschool, will they lose it if they enroll in a local Japanese school?"

"But if we jump straight into an international school, will their Japanese language and academic development be okay?"

Perhaps you're grappling with these concerns right now.

Searching for an "international elementary school" isn't just about choosing a school; it's a crucial decision that affects your child's future identity and opportunities.

This article is designed for families new to the international school system in Japan. We'll break down the different types of schools, their pros and cons, and share secrets to success from the perspective of English Language Teaching (ELT) professionals.

1. There Are Three Main Types of 'International' Elementary Schools in Japan: Know the Difference

The term "international school" can be misleading. In Japan, these schools generally fall into three categories based on their curriculum and legal status. Understanding these distinctions is crucial to avoid making the wrong choice.

Features

① Traditional / Authentic International Schools

② "Article 1" Schools (Japanese-Accredited) + International Courses

③ Bilingual Elementary / Newer Schools

Primary Language

Almost 100% English

Japanese base + English immersion

Ratio varies by school

Legal Status

"Miscellaneous" or "Foreign" School (Not a Japanese-accredited school)

Japanese Elementary School (Article 1 School)

"Miscellaneous" School or Article 1 School

Curriculum

IB (International Baccalaureate), American, British, etc.

Japanese national curriculum + IB, etc.

Often a unique curriculum

Main Pathways

Universities abroad, international universities in Japan

Japanese universities, universities abroad

Diverse (some students take exams for Japanese middle schools)

Best for families who...

Strongly plan for university education overseas.

Want to secure a Japanese graduation certificate.

Want to maintain an English environment while keeping options flexible.

Only schools in category ②, "Article 1 Schools," are recognized as completing Japan's compulsory education. For category ①, transitioning to a public Japanese middle school or taking Japanese university entrance exams may require extra procedures and qualification checks (like international accreditations).

2. Three Key Factors for a Decision You Won't Regret

Choosing a school just because "they will learn English" is risky. Clarify your family's goals using the following three criteria.

Factor 1: What is the Target for Your Child's Final Education?

  • Mainly universities abroad: Category ① international schools are the most direct path.
  • Mainly Japanese universities: Category ② Article 1 schools, or a "Japanese elementary school + English after-school program" is more realistic. Graduates of international schools taking standard Japanese university entrance exams will need separate, intensive preparation in advanced Japanese (including classical Japanese and Chinese literature).

Factor 2: How Important is Japanese Language Proficiency?

  • If you want your child to achieve a high level of proficiency in Japanese, including cultural nuances, kanji, and formal language (keigo), then strong language support at home is essential, even if they attend an international school.
  • Underestimating this can lead to the risk of "double-limited (semilingualism)," where neither English nor Japanese reaches an age-appropriate level.

Factor 3: The 12-Year Budget

  • Average international school tuition: 2-3 million yen per year × 12 years ≈ 24-36 million yen
  • In addition, there are costs for donations, school bus fees, overseas trips, etc. Even if you only plan for elementary school, the difference in environment can make it difficult to transition back to a Japanese middle school, so long-term financial planning is necessary.

3. Pros and Cons of International Elementary School

A Realistic Look at the Pros and Cons for Families Considering This Path.

Pros: Developing Global Standard Skills

  • Overwhelming amount of English: The volume of input and output is incomparable to English classes in public schools, allowing children to maintain and develop the "English brain" they cultivated in preschool.
  • Inquiry-based learning: Skills in thinking, debating, and presenting on "questions with no single right answer," typical of programs like the IB (International Baccalaureate), are nurtured.
  • Acceptance of diversity: Children grow up in an environment where differences in nationality, religion, and culture are the norm.

Cons & Cautions: Parental Commitment is Required

  • Distance from Japanese language and culture: There's a tendency for knowledge of formal language (keigo), the culture of "reading the air," and Japanese history/geography to be weaker.
  • Risk of a 'guest' mentality: In schools with a large number of students from non-English speaking backgrounds, they may revert to their native language during breaks, and English proficiency may not improve as much as expected.
  • Parental English proficiency: A certain level of English may be required from parents for school communications, parent-teacher conferences, and homework support.

4. Common Educational Paths for Preschool Graduates

The main routes chosen by families before you are the following three:

Pattern A: [International School Path] Committing to English-Medium Education

Preschool → International Elementary → University Abroad / International Program in Japan

  • This path yields the highest English proficiency but also comes with the greatest financial burden and the need for significant Japanese language support.

Pattern B: [Japanese School + English Support] The Hybrid Model

Preschool → Japanese Public/Private Elementary + High-Quality English Tutoring/After-School Program

  • This approach focuses on building foundational academics and identity within the Japanese system while developing English as a high-level tool. It keeps tuition costs down and leaves options open, such as preparing for Japanese middle school entrance exams.
  • However, standard English conversation schools are often insufficient to maintain the level of a preschool graduate, so choosing the right program is critical.

Pattern C: [The Flexible Path] Bilingual Elementary / Private School with an International Course

  • For families who want to balance Japanese and English while keeping future options flexible from middle school onwards.

5. 'Magic Questions' to Ask During a School Tour

When you attend an information session or tour, asking these questions can reveal the school's true nature.

  1. "How many hours of Japanese language class are there per week? Do you use Japanese-accredited textbooks?"

    → This reveals their commitment to Japanese language education.

  2. "What is the ratio of local Japanese teachers to international teachers?"

    → The homeroom teacher's background can significantly influence the classroom atmosphere.

  3. "What are the academic pathways of your graduates (specifically, acceptances into competitive Japanese middle or high schools)?"

    → This is an indicator of the academic rigor of the curriculum.

  4. "Do you offer learning support for students who are struggling (e.g., EAL/ESL)?"

    → The availability of a safety net for students who fall behind in English is crucial.

6. Essential Advice from the Experts at ELT

From the perspective of ELT, a London-founded English school established in 1984 that has worked with countless international school students and returnees, there is one final thing we want to share.

Getting into an International School is Not the Finish Line

The idea that "getting into an international school automatically makes you bilingual" is a misconception.

What's required, especially from the upper elementary years onward, is not conversational fluency but 'academic English proficiency.'

  • The ability to write logically structured essays in English (Academic Writing)
  • The ability to comprehend complex topics and think critically in English (Critical Thinking)

We have seen children who, lacking these skills, struggle to keep up in class at international schools, fall behind in their Japanese studies as well, and ultimately lose their confidence.

Whichever Path You Choose, the 'Ability to Think in English' Can Be Developed

Conversely, even for students attending a local Japanese school, it's possible to develop 'globally competitive English skills' with the right guidance.

What's important isn't the 'school's brand name,' but 'whether there is a place for high-quality input and intellectual output that matches your child's current English level.'

How ELT Can Help

At ELT, we provide personalized, one-on-one instruction, serving as a supplementary support program for international school students or as an advanced English academy for children attending local Japanese schools.

  • For those considering an international school: We can assess your child's current English proficiency to determine if they are ready for international school classes and offer preparatory lessons.
  • For those choosing a Japanese elementary school: We provide one-on-one instruction with native-speaking teachers to maintain the English skills gained in preschool and elevate them to advanced reading and writing abilities.

"We're undecided about international school," or "We want to improve our child's English while they attend a local school."

It's perfectly fine to be at this uncertain stage. Please contact ELT for a consultation. Together, we can create the optimal plan for your child's future, looking 10 years ahead.

Book a Consultation with ELT

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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