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Spain, Madrid
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Languages taught include English, Spanish, French, and German. English-language immersion is implemented from nursery; Primary features English–Spanish bilingual instruction and introduction of French and German from Years 3–4, with a choice between French or German from Year 5. In Secondary, three English-proficiency pathways exist: Spanish, English, or bilingual. The IB Diploma Programme can be taught entirely in English or in a bilingual English–Spanish option, and the LOMLOE Bachillerato is offered in Spanish or bilingual Spanish–English.
English–Spanish bilingual education is offered from nursery through secondary. Nursery provides English-language immersion from age 1. In Primary, English–Spanish bilingual instruction is standard; French and German are introduced from Years 3–4, and from Year 5 students choose between French or German. In Secondary, there are three English-language pathways (Spanish, English, or bilingual), and the Diploma Programme can be taught entirely in English or in a bilingual English–Spanish option.
English-language immersion is fully implemented from age 1 to 3 in Nursery. Preschool offers a full English-language immersion with native-speaking or bilingual teachers and one daily Spanish period. Primary provides English–Spanish bilingual education, with French and German introduced in Years 3–4 and a choice between French or German from Year 5. Secondary maintains English-language immersion with three pathways by English level and offers the IB Diploma Programme in English or bilingual English–Spanish.
SEK International School El Castillo is a private international school in Spain serving ages 0 to 18. Founded in 1972 by Felipe Segovia Olmo and part of the SEK Education Group, it offers the International Baccalaureate continuum (PYP, MYP, DP) alongside the American Curriculum and bespoke pathways, with full English-language immersion and bilingual Spanish–English education. The school also provides a Dual Diploma option enabling students to obtain the Spanish Bachillerato and/or the Diploma Programme and the American High School Diploma. A campus of about 40,000 square metres hosts dedicated buildings for each stage, flexible learning spaces, intelligent classrooms and laboratories, a well-stocked library, art and music spaces, and extensive digital technologies. The on-site facilities include a dining hall and central courtyard. Extensive sports and arts facilities, a Learning Adventures programme, and a range of clubs support development in leadership, STEM, and the arts. Boarding is available for both local and international students.
