A private school usually follows the country’s national curriculum and teaches in German, while an international school offers an internationally recognized curriculum in English and brings together students from many different nations. Both are private educational institutions, but their approach, their qualifications, and everyday school life differ significantly. Many parents wonder what this difference means in practice, and the sections below explain it.
What Is a Private School in Germany?
A traditional private school in Germany is a state-approved or state-recognized school run by a private operator. It follows the curricula of the respective federal state, teaches in German, and prepares students for German qualifications such as the Hauptschulabschluss, the Mittlere Reife, or the Abitur. The student body is usually predominantly German-speaking.
What Distinguishes an International School From a Private School?
An international school, on the other hand, deliberately caters to an international audience. The language of instruction is usually English, and the curriculum is based on internationally recognized frameworks such as the Cambridge curriculum or the International Baccalaureate (IB).
Students from dozens of different nations learn together, and the qualifications are recognized by universities worldwide. Cultural diversity is not a side effect here, but a deliberate part of everyday school life.
Which Qualifications Can Be Earned at an International School?
This is one of the questions parents ask most often, and the answer is pleasingly clear: at an international school, students can earn internationally recognized qualifications that open doors to universities all over the world.
Typical qualifications at an international school are:
- Cambridge IGCSE (International General Certificate of Secondary Education): Students usually prepare for this qualification in grades 9 and 10 and take the exams in grade 10. British universities look particularly closely at IGCSE results, but American and other international universities also take these results into account. In Germany, it corresponds to the Sekundarabschluss I (Mittlere Reife), provided the relevant requirements are met.
- International Baccalaureate (IB) Diploma: This school-leaving program is completed in grades 11 and 12. The IB Diploma is recognized by universities worldwide and is considered a particularly demanding qualification. In Germany, it provides the general university entrance qualification (Allgemeine Hochschulreife) under certain conditions.
- The ISR High School Diploma as well as certificates such as the DELF (French) and DELE (Spanish) can be earned in addition.
What Does the IB Diploma Involve?
The IB Diploma is much more than an exam. Students must:
- Take exams in six subjects
- Write an Extended Essay (EE)
- Take part in the Creativity, Activity, Service (CAS) program
- Complete the Theory of Knowledge (TOK) course
That sounds like a lot of work, and it is, but it provides excellent preparation for university.
What Is the Language of Instruction at an International School?
The language of instruction at an international school is English. This applies to all main subjects such as mathematics, sciences, history, and social studies. English is therefore not just a school subject, but the language in which students think, discuss, and learn every day.
However, German by no means plays a minor role. At a good international school in Germany, German is a required subject for all students, regardless of whether they are native speakers or learning German as a foreign language. From a certain grade onward, a third language is often added, frequently with a choice of French, Spanish, Japanese, or Chinese.
This multilingual environment is one of the greatest advantages of an international school. Children and young people grow into several languages quite naturally because they work together every day with classmates from all over the world.
What Is the Difference in Curriculum Between a Private School and an International School?
A German private school follows the curriculum of its respective federal state. This means that the content, exam formats, and qualifications are the same as at public schools; only the environment and sometimes the teaching methods differ.
An international school works with its own international curriculum. The Cambridge curriculum, for example, is a British-based framework that sets out clear learning objectives and regular external examinations. The IB Diploma Programme is even more comprehensive: it combines academic knowledge with critical thinking, research skills, and social engagement.
Another difference lies in how learning is monitored. Many international schools rely on regular, often weekly, progress checks to identify knowledge gaps early and close them in a targeted way. This is a structured approach that ensures no child falls behind.
Who Is an International School the Right Choice For?
An international school is a particularly good fit for families who value an internationally oriented education. This applies, for example, to:
- Families who have moved to Germany from abroad and are looking for an English-speaking school environment
- German-speaking families who want their children to grow up in a multilingual, culturally diverse environment from the start
- Parents who want to specifically prepare their children for studying abroad, for example in the UK, the USA, the Netherlands, or Asia
- Families who move frequently and need a school whose qualifications are recognized worldwide
An international school is also an attractive option for children who are particularly motivated and are looking for a demanding, structured curriculum. The IB Diploma, for example, is explicitly aimed at students who are ready to look beyond their own horizons and engage deeply with the material.
How Does an International School Prepare Students for University?
At a good international school, university preparation is not a topic that only comes up in the final year. Many schools start a structured University and Career Counseling program as early as grade 8, which includes:
- Regular conversations with students and parents
- Personality and career assessments
- Information events with university representatives
- Individual advice on applications
The IB Diploma itself is particularly valuable in this respect. The Extended Essay, which all IB students must write, is an independent research paper of about 4,000 words. Many graduates report that it was precisely this experience that best prepared them for academic work at university, along with skills such as time management, working with sources, and handling information responsibly.
Students who graduate with the IB Diploma have good chances of admission to renowned universities worldwide, from the University of Cambridge to universities in Japan or the USA, but also to German universities, provided they have obtained the general university entrance qualification.
How Does ISR International School on the Rhine Support the Transition Between School Systems?
We know that switching to a new school system, whether from within Germany or from abroad, can raise many questions. ISR International School on the Rhine in Neuss, near Düsseldorf, Germany, supports families through exactly this process: clearly, personally, and with a genuine focus on each child’s individual needs.
What we offer specifically:
- Instruction in English based on the Cambridge curriculum (Cambridge IGCSE certificate at ISR) and the International Baccalaureate Diploma Programme, with globally recognized qualifications
- German as a required subject for all students, complemented by additional languages such as French, Spanish, Japanese, or Chinese
- A vibrant school community with children and young people from more than 60 nations, where cultural diversity is part of everyday life
- A structured University and Career Counseling program that begins as early as grade 8 and supports families individually with academic planning
- Regular progress checks that ensure no child falls behind
- Personal support when starting at the school, including for families who are new to the region or new to Germany
If you would like to learn more about how we can support your child on the way to an internationally recognized qualification, we warmly invite you to attend one of the ISR Info Days and see our school for yourself.
