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Sønderborg International School

Denmark, Sonderborg

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Resources and spaces that support learning and development

Facilities Overview

The school is located at Agervang 14, Sønderborg, 6400. Sønderborg International School is a Cambridge International School affiliated with the University of Cambridge and offers Cambridge examinations. The Cambridge Program provides progression from primary through secondary, with Cambridge Secondary 1 (11 to 14) and Cambridge Secondary 2 (14 to 16) and Cambridge IGCSE exams, alongside Danish language exams. STEM subjects (Science, Maths, and English) are taught alongside Danish language, foreign languages and humanities. An Open School Day offers guided tours of classrooms and facilities, giving prospective families a view of the learning environment. The international Kindergarten operates in partnership with Sønderborg Municipality in Engelshøj and has lunch and fruit time as part of its program.

Academic Facilities

Sønderborg International School is a Cambridge International School, delivering the Cambridge framework for primary through secondary. Cambridge Secondary 1 and 2 are offered, with students entering for Cambridge Checkpoint and then Cambridge IGCSE exams, as well as Danish language exams. Subjects include Mathematics, English, Danish, Science, Humanities, Religious Education, German, Business Studies, Design and Technology, and Art & Music, with Sports as a subject. The curriculum combines English-language Cambridge instruction with Danish examinations (FP9) and supports progression to A-level equivalents and local options. Pedagogy emphasizes Activity-Based Learning, Experiential Learning, and a Safe & Enabling Environment, with small class sizes enabling more one-on-one attention. Life skills such as social skills, thinking skills (critical, creative), decision making and emotional development are integrated into the curriculum.

Extra-Curricular Activities

The After School Program (ASP) runs for Years 1–4 on a subscription basis, with opening hours 12:45–16:45 Mondays to Thursdays and 12:45–15:45 Fridays. The program focuses on developing motor skills, following the rules of games, expressing oneself through Art and Music, exploring the world, conducting experiments, organizing games and play, social skills and personal responsibility, using weekly themes built around social and cultural events and student input. Beyond ASP, SIS hosts events such as Career Week with visiting professionals to inspire students. The school also runs an Open School Day to showcase the learning environment to prospective families.

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The school at a glance
Instructs in English, Danish
Fees DKK 20,350 - 32,025
Ages 3 - 16 years
Type Co-educational
Opened 2007
Bus Service No

Sønderborg International School (SIS) is a Cambridge International School in Denmark offering a Cambridge-based path from Primary through Upper Secondary with a Nordic context. The campus serves pupils aged 3–16 across Primary (Year 1–4), Lower Secondary (Year 5–7) and Upper Secondary (Year 8–10). The curriculum blends Cambridge instruction with a bespoke Danish‑English program, small class sizes, and cross‑curricular learning that includes Forest School. In Upper Secondary, students pursue Cambridge IGCSE qualifications, studying English, Maths, Science, Global Perspectives, Danish, German, History and Business Studies, with Danish First Language available for native speakers. The school's Kindergarten, founded in 2016 in a private‑public partnership with Sønderborg Municipality, anchors early years in a wider community. Facilities include accessible academic spaces and opportunities to tour during Open School Day. Extracurriculars feature a Student Council, Career Week, and an After School Program, while Life Skills and experiential learning underpin daily education. A welcoming, globally aware community.

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