What Is the International Baccalaureate Diploma Program (IBDP)?

The IB Diploma Program (IBDP) is a world-recognized high school program for ages 16 to 19. Learn its structure, subject groups and benefits from our experts.

The IB Diploma Program (IBDP) is a two-year pre-university program developed by the International Baccalaureate for students aged 16 to 19 and taught in the final two years of high school. Students take one subject from each of six groups, built around a shared core — Theory of Knowledge, the Extended Essay and CAS — and graduate with a diploma scored out of 45 and recognized by leading universities worldwide. More than 5,300 schools deliver the program today. This guide explains how the IBDP is structured, how it is assessed, who it suits, and how it works alongside the Turkish high school diploma.

What Is the IBDP?

The IBDP is a two-year academic diploma program developed by the International Baccalaureate Organization for students aged 16 to 19, taught in grades 11 and 12. It prepares students for university and for the life beyond it, supporting intellectual, social, emotional and physical development as a whole. More than 5,300 schools worldwide deliver the program, and graduates earn an internationally recognized diploma.

At the heart of the program sits the IB learner profile — ten attributes the program deliberately nurtures: inquirers, knowledgeable, thinkers, communicators, principled, open-minded, caring, risk-takers, balanced and reflective. These are not decorative words. Subject content, classroom method and assessment are all designed to feed them, so that the graduate is not merely someone who passes exams but someone who questions, researches and approaches the world responsibly.

One clarification matters for families comparing school systems: the IBDP is a program, not a type of school. It is built on top of a school's existing education rather than replacing it. At Gökkuşağı Schools, for example, DP students follow a strong national curriculum alongside their IB subjects and graduate with the Turkish high school diploma and the IB Diploma together.

How Is the IBDP Structured? The Six Subject Groups

Every IBDP student takes one subject from each of six groups, which keeps the two years broad and balanced rather than narrowly specialized.

Subjects are studied at two levels: typically three at Higher Level (HL) and three at Standard Level (SL). HL subjects let a student go deep in the fields they are considering for university, while SL subjects protect the breadth. A student leaning toward engineering, for instance, can weight mathematics and a science at HL while still reading literature and working in a foreign language.

What Is the DP Core: TOK, EE and CAS?

The DP Core is the set of three compulsory components at the center of the six subject groups, and it is what gives the program its identity.

The core does not sit beside the subjects; it sits at their center. TOK connects what is learned across the six groups, the EE opens a door into depth, and CAS carries learning out of the school building. Much of what makes the DP feel like one coherent whole, rather than six separate courses, comes from this core.

The IBDP teaches the student not what to think, but how to think.

How Is the IBDP Assessed and Scored?

IBDP assessment stands on two legs — internal assessment during the course and external examinations at the end — and the diploma is scored out of 45.

Each subject is graded from 1 to 7. Internal assessment covers work such as oral presentations, laboratory work and projects, marked by teachers and moderated by the IB, and it is spread across the two years. External assessment consists of written examinations taken at the end of the program and marked by independent examiners.

The six subjects contribute up to 42 points; performance in TOK and the Extended Essay adds up to 3 more, bringing the maximum diploma score to 45. CAS receives no points, but the diploma is not awarded without completing it.

For parents, the practical meaning is this: the outcome does not hinge on a single exam day. Two years of steady work count alongside the final examinations, which makes the assessment more balanced and more predictable than a one-shot exam.

Who Is the IBDP Right For?

The IBDP suits students who are academically motivated, comfortable with independent work and able to sustain a demanding two-year rhythm. It tends to reward:

An honest caveat: the IBDP is not for everyone. It demands planning, steady work and ownership; an Extended Essay left to the last week or a neglected CAS calendar makes the program genuinely hard. But the opposite myth — that it is only for exceptionally gifted students — is not true either. A determined student with good guidance can complete the program well.

Questions worth asking on a school visit

Take these questions with you when you visit or call a school; the answers show how the program actually lives there:

How Does the IBDP Help with University Admissions?

The IB Diploma is recognized by the world's leading universities and treated as a strong academic reference in many application processes.

Its value comes in two layers. The first is recognition: thousands of universities worldwide accept the diploma, and many offer admission or credit advantages. The second is preparation: a student who has written a 4,000-word research essay, examined knowledge critically in TOK and gone deep in HL subjects begins the first year of university already practiced in its core skills.

Since admission requirements differ by country, university and program, always confirm the current conditions of a target program directly with the university concerned.

Does the IBDP Replace the Turkish High School Diploma?

No — the IB Diploma is earned in addition to the national diploma, not instead of it. For a family relocating to Turkey this matters: choosing the DP does not close the door on the Turkish system. At Gökkuşağı Schools, DP students follow the strong national curriculum and the IB program together and graduate with two documents — the Turkish high school diploma and the internationally recognized IB Diploma. The two complement each other and keep university options open in both directions.

How Does the IBDP Work at Gökkuşağı Schools?

Gökkuşağı Schools, an IB World School at the institutional level, delivers the IB Diploma Programme under authorization at two campuses: Ankara Çankaya (Alacaatlı) and Istanbul Bahçelievler. In Group 1 students study Turkish Language and Literature; Group 2 offers English and a second foreign language; the remaining groups follow the DP structure described above. Graduates leave with both the Turkish high school diploma and the IB Diploma.

To see how the program runs day to day, the admissions process and campus options, explore our IB Diploma Program page, or get in touch with us with your questions.

In brief

  • The IBDP is a two-year, world-recognized diploma program for ages 16-19, delivered in more than 5,300 schools.
  • Structure: one subject from each of six groups — typically three HL, three SL — plus the DP Core (TOK, EE, CAS).
  • Assessment combines internal work across two years with final external exams; the diploma is scored out of 45.
  • The IB Diploma does not replace the Turkish high school diploma; at Gökkuşağı Schools graduates earn both.
  • Gökkuşağı delivers the DP under authorization at its Ankara Çankaya (Alacaatlı) and Istanbul Bahçelievler campuses.

Frequently Asked Questions

Is the IBDP a difficult program?

The IBDP is academically demanding: it asks for steady work, time management and personal responsibility across two years. Because part of the assessment is spread through the course, however, the load does not pile up on a single exam day. The program is not reserved for exceptionally gifted students — a determined student with good guidance can complete it well, and the skills gained repay the effort many times over.

How is the IB Diploma scored?

Each of the six subjects is graded from 1 to 7, contributing up to 42 points. Performance in Theory of Knowledge and the Extended Essay adds up to 3 more, so the maximum diploma score is 45. Marks combine internal assessment — work graded by teachers and moderated by the IB during the course — with external examinations at the end. CAS carries no points but must be completed for the diploma to be awarded.

In which grades is the IBDP taught, and who is it for?

The IBDP is taught in the final two years of high school — grades 11 and 12 — for students aged 16 to 19. It suits students who are academically motivated and open to independent research and additional study. At Gökkuşağı Schools the program is delivered under authorization at the Ankara Çankaya (Alacaatlı) and Istanbul Bahçelievler campuses.

Does the IB Diploma replace the Turkish high school diploma?

No. The IB Diploma is built on top of a school's existing education, not in place of it. At Gökkuşağı Schools, DP students follow the national curriculum and the IB program together and graduate with both the Turkish high school diploma and the internationally recognized IB Diploma. The two documents complement each other and keep university options open at home and abroad.

How can I verify that a school really offers the IBDP?

IB authorization is granted campus by campus, so check the specific campus rather than the school brand. Search the school's name in the "Find an IB World School" directory at ibo.org; the entry shows which programs each campus is authorized to deliver. Gökkuşağı Schools' DP campuses are Ankara Çankaya (Alacaatlı) and Istanbul Bahçelievler.

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