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Is the IB (International Baccalaureate) Too Difficult? Understanding the PYP/MYP/DP System and How to Avoid Dropping Out

Updated:
Published:
2026 Latest
国際バカロレア(IB)完全ガイド:PYP・MYP・DPの仕組みから科目選択・大学進学まで徹底解説【2026年版】 - ELTスクール 英語学習コラム
Tatsuya Tanaka

Author: Tatsuya Tanaka|Representative Director, ELT Japan

When considering an international school, the 'IB (International Baccalaureate)' is a topic you can't avoid. While it's a wonderful curriculum promoting holistic education, certain 'rumors' are common among parents:

  • "The last two years of the IB (the DP) are so busy you barely have time to sleep."
  • "The workload is so immense that some students drop out."
  • "Isn't it too demanding for students from non-English speaking backgrounds?"

To be direct, it is true that the IB is one of the 'most rigorous high school curricula in the world.' However, if you understand the 'structure' of why it's so challenging and prepare from an early stage, it is entirely manageable.

This article will provide a candid explanation of the IB system, why the DP is sometimes described as 'hell,' and the 'language and inquiry-based learning' challenges that many international students face.

The Overall Structure of IB Education: The 'Perilous Gap' from PYP to DP

The IB is divided into three programmes based on age:

  1. PYP (Primary Years Programme): Ages 3-12. An introduction to 'inquiry' through play and experience.
  2. MYP (Middle Years Programme): Ages 11-16. Subject-based learning and projects.
  3. DP (Diploma Programme): Ages 16-19. A pre-university qualification course.

The 'MYP to DP Gap' Where Many Students Stumble

The biggest issue is the significant disconnect (gap) in difficulty and workload between the MYP and the DP. The MYP is relatively flexible, and some schools may operate with their own assessment criteria. However, the moment a student enters the DP, they are faced with rigorous, globally standardized external exams and a massive volume of written assignments.

Countless students jump into this 'change of pace' unprepared and find themselves overwhelmed in Grades 11 and 12.

Why is the IB-DP Called 'The World's Most Rigorous'?

The reason DP students lament their 'lack of time' isn't just because the subjects are difficult. It's because, in addition to six subjects, the following 'Three Core Requirements' are mandatory.

These components are akin to university-level work, demanding exceptional time management skills.

Core Requirement

Content and Workload

EE (Extended Essay)

Students formulate their own research question, conduct research, and write a 4,000-word academic paper in English. This requires effort comparable to a university dissertation.

TOK (Theory of Knowledge)

Students tackle philosophical questions like 'What is knowledge?' and 'How does the certainty of mathematics differ from the certainty of history?' through an essay and a presentation. The mental load of grappling with questions that have no single correct answer is significant.

CAS (Creativity, Activity, Service)

Students must continuously engage in creative, athletic, and service activities and submit records (reflections). 'Just studying' is not an option.

While managing all of this, students must also prepare for exams in six subjects, including high-level mathematics and sciences. This is the reality behind the rigor of the IB-DP.

Two 'Invisible Walls' Many Students Face

For families coming from different educational systems, two additional challenges often arise.

1. Shifting from 'Rote Memorization' to 'Inquiry-Based' Learning

Many traditional education systems focus on 'memorizing the correct answer provided by the teacher,' but the IB is all about 'Inquiry-based Learning.'

  • In an IB class: Students are constantly asked, 'Why do you think this formula works?' or 'What is another perspective on this historical event?'
  • The challenge for students: If students enter the DP with a 'just tell me the right answer' mindset, they will struggle to construct their own 'argument' in TOK and the EE, and their grades will suffer.

2. Lack of CALP (Cognitive Academic Language Proficiency)

The belief that 'my child is fluent in conversational English, so they'll be fine' is a major misconception. The IB demands a high level of CALP (Cognitive Academic Language Proficiency), the language skill needed for cognitive and academic tasks.

  • History/Economics: The ability to logically explain cause-and-effect relationships in an essay.
  • Biology/Physics: The ability to describe complex biological phenomena or physical laws using precise definitions.

Speaking with friends in English is a completely different skill from writing a detailed explanation of photosynthesis in English. A lack of CALP leads to the frustrating situation of 'understanding the content but losing marks because you can't express it adequately in English.'

Math & Science Also Require More Than 'Memorization'

In the IB, Mathematics is compulsory even for students planning to pursue humanities. Furthermore, in science subjects, writing 'lab reports (Internal Assessments)' carries significant weight, not just calculations.

  • Math AA (Analysis and Approaches): A deep understanding of proofs and theories is essential. Rote memorization of patterns, common in some national exam preparations, will not suffice.
  • Science: The entire process of 'Hypothesis -> Experiment -> Verification -> Conclusion' must be documented in a formal report, all in English.

Reference: A Thorough Comparison of the World's Three Major Curricula (IB/A-Level/AP)

Read article

A Deep Dive into the World's Top 3 Curricula | IB, A-Level, AP: Which One is Right for You?

What You Can Do Now to Prevent 'Dropping Out'

While we've highlighted the challenges, the IB is a fantastic curriculum that, once completed, equips students with exceptional critical thinking skills valued by universities worldwide. To prevent burnout and succeed in the DP, the following preparations are crucial:

  1. Get comfortable with 'questions that have no right answer': Plant the seeds of critical thinking at home by discussing current events.
  2. Get a head start on CALP (Academic Language): Begin learning the specialized terminology and concepts in English for the subjects you plan to take (e.g., sciences, humanities).
  3. Prepare during the MYP: Don't wait until just before the DP starts. Gain experience with the 'inquiry cycle' (question -> investigate -> present) during the MYP years.

The 'Inquiry-Based Learning' Support ELT Offers

At ELT, we provide more than just 'English tutoring' for IB students.

  • Inquiry Support for Math & Science: Instead of just giving answers, we guide students through the inquiry process for their Math and Science assignments—'how to form a hypothesis and how to test it.'
  • Strengthening Academic Writing Skills (CALP): We teach the academic English expressions and logical structures necessary for IAs (Internal Assessments) and TOK essays.
  • Mentorship: Experienced IB graduates and skilled instructors offer advice on time management and overcoming mental blocks.

Taking on the IB challenge will greatly expand your child's potential. Let's work together with a professional partner to ensure that this challenge is not just a struggle, but a journey of growth.

Frequently Asked Questions

A

1968年にスイス・ジュネーブで設立された国際バカロレア機構(IBO)が提供する国際的な教育プログラムです。世界160カ国以上、約6,000校で採用されています。PYP(3〜12歳)、MYP(11〜16歳)、DP(16〜19歳)の3プログラムで構成され、DPを修了すると世界100カ国以上の大学に出願できる国際的な大学入学資格を取得できます。

A

45点満点中、24点がディプロマ取得の最低ライン、世界平均は約30点です。英国Russell Group大学では36〜39点、Oxford/Cambridgeでは40〜42点が目安。日本の難関大学(東大・京大等)のIB入試では36〜40点が競争力のあるスコアとされます。

A

使えます。2026年時点で82大学(国立27校、公立8校、私立47校)がIBスコアを活用した入試を実施しています。東京大学、京都大学、大阪大学をはじめ主要な国立大学のほとんどがIB入試枠を設けています。

A

難しさの質が異なります。IBDPは6科目+コア要件の「量」が難しく、A-Levelは3科目の「深さ」が難しい。全科目バランスよく学べるオールラウンダーにはIB、特定科目が飛び抜けて得意な生徒にはA-Levelが向いています。大学側はどちらも同等に評価しています。

A

可能です。「日本語DP」実施校では、数学や理科等を日本語で履修し、最終試験も日本語で受けられます。開智日本橋学園、都立国際高校、玉川学園、茗溪学園などが日本語DPを実施しています。

A

プログラム単位で268件(2025年6月時点)。DP認定校は75校、DP候補校が7校です。インターナショナルスクールだけでなく、一条校(日本の私立・公立学校)でも導入が進んでいます。

A

DPを途中で中断し、A-Level校に転校する選択肢や、DP全体ではなく個別科目の成績証明(Certificate)のみで卒業する選択肢があります。またIB校に在籍しながらA-LevelやAPを独自受験して出願の選択肢を広げる方法もあります。ただしタイミングによっては1年間のロスが発生するため、できるだけ早い段階(DP Year 1の前半)で判断することが重要です。

A

可能です。MYP修了後にA-Level校(Harrow Appi、Rugby School Japan等)に転校する方法と、IB校に在籍しながらA-Levelを独自受験(Private Candidate)する方法があります。後者の詳細は「A-Level完全ガイド — Private Candidateという選択肢」をご覧ください。

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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