Classes at international schools in Germany usually have between 15 and 25 students, significantly fewer than at most public schools. Regular German schools often have 25 to 30 children per class. This is no coincidence but a deliberate educational concept: smaller classes allow for more individual support, more interaction between teacher and child, and a learning environment in which every child gets the attention they deserve.
How Large Are Classes at International Schools in Germany?
At most international schools in Germany, class sizes range from 15 to 25 students, and many schools actively make sure not to exceed this upper limit. This applies to both the elementary school level and the secondary grades. At the kindergarten level, the picture is a little different: here, groups often work with one lead teacher and up to two assistants, which allows for very personal care.
What Should Parents Ask About Class Size When Comparing Schools?
The actual class size can vary depending on the school, location, and grade. Some international schools are deliberately kept small, while others have several parallel classes.
When comparing different schools, it is therefore worth asking about:
- The average class size
- How many teachers are assigned to each class
- What support structures are in place
What Changes in My Child’s Everyday School Life Thanks to Smaller Classes?
Smaller classes are not just a marketing argument; they genuinely change how teaching works. When a teacher looks after 18 children instead of 30, they simply have more time for each individual child. They notice sooner when someone is falling behind, can answer questions in more detail, and can teach more flexibly because the group as a whole is easier to manage.
For children, this concretely means:
- More opportunities to actively participate in class
- More feedback on their work
- An environment in which they feel confident asking questions
Especially for children who are learning in a new language or coming from a different school system, this makes a considerable difference. The transition is easier when you don’t disappear into an anonymous crowd.
What Is the Difference Between Public Schools and International Schools in Germany?
The most obvious difference is the language of instruction: international schools teach predominantly in English, while German is the language of instruction at regular German schools. But the difference goes deeper than that.
- Curriculum: International schools follow internationally recognized curricula such as the Cambridge curriculum or the International Baccalaureate (IB). Public schools follow the curricula of their respective federal state.
- Qualifications: With the IB Diploma or the Cambridge International General Certificate of Secondary Education (IGCSE), students earn qualifications that are recognized by universities worldwide, not just in Germany.
- Class structure: International schools generally have smaller classes and often more teachers per student.
- Cultural diversity: At international schools, children from many different countries come together, which enriches the learning environment and prepares children for a globalized world.
- Costs: Public schools are free of charge; international schools charge tuition.
Neither one is fundamentally better than the other. It depends on the family’s needs and the goals for the child.
Which Children Is an International School in Germany Suitable For?
International schools are particularly well suited to children from families who are internationally mobile or who are growing up in a multilingual household. If your family moves regularly or you plan for your child to study or work abroad later, an internationally recognized qualification such as the IB Diploma offers clear advantages.
Families who are firmly rooted in Germany also deliberately choose international schools. Their reasons include:
- The wish for an English-speaking learning environment
- A particular interest in a globally oriented curriculum
- The conviction that smaller classes and individual support are a better fit for their child
International schools are less suitable for families who depend on state school-leaving qualifications or whose child is not yet ready, in terms of language, to learn in a foreign language. However, many international schools offer good support with language acquisition, so a lack of English skills at the start is often not an obstacle.
How Does Class Size Affect Academic Success at International Schools?
Smaller classes alone do not make for good teaching. What matters is what teachers do with the extra room they gain. At well-run international schools, teachers use smaller groups to tailor their teaching more closely to the needs of individual children, for example through regular progress checks to identify knowledge gaps early and targeted support for children who need more help in certain areas.
Studies and practical experience in schools consistently show that children in smaller classes participate more actively in lessons, receive more individual feedback, and develop greater confidence as learners. In the long term, this affects their academic results, but also their willingness to take on challenges and take responsibility for their own learning.
What Questions Should Parents Ask When Choosing an International School?
If you are considering an international school for your child, the following questions are a good starting point:
- How large are the classes on average, and how many teachers work in each class? A small class with a single teacher can be less effective than a slightly larger class with several support staff.
- Which qualifications are offered? Are they recognized in Germany and internationally? Can your child use them to study at German universities?
- How does the school respond to different learning levels? Is there support for children who need help in certain areas?
- What does language support look like? Is German actively taught? Which other languages are offered?
- How is the school accredited? Recognized accreditations such as Cognia, Cambridge, or authorization as an IB World School indicate quality assurance.
- How does the school work with parents? Are there regular meetings, transparent communication, and clear points of contact?
- What extracurricular activities are available? Sports, art, technology, and other activities are important for well-rounded development.
A school visit is recommended in any case. No brochure or website can replace the personal impression you get when you experience the school, the teachers, and the school community for yourself.
How Does ISR International School on the Rhine Help Families Choose the Right School?
We know that choosing the right school is one of the most important decisions families make. At ISR International School on the Rhine in Neuss, near Düsseldorf, Germany, we accompany families from around 60 nations from kindergarten through grade 12, in an environment that deliberately focuses on small classes, individual support, and international community.
What is particularly important to us:
- Manageable class sizes: Our classes are designed so that teachers can truly get to know every child and support them in a targeted way.
- Internationally recognized qualifications: With the Cambridge IGCSE certificate at ISR and the IB Diploma, we open up pathways for students to universities worldwide.
- Language support: A lack of English skills is not an obstacle at our school; we specifically support children as they enter the English-speaking learning environment.
- Cultural diversity as a strength: Everyday life with peers from all over the world prepares children for life in a globalized society.
- Transparent communication: We place great value on open collaboration with families, from the first inquiry to everyday school life.
If you would like to see for yourself, we look forward to welcoming you at one of the ISR Info Days. It is a great opportunity to get to know the school, our teachers, and the school community in person.
