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RBIS teaches English as the main language of instruction within the British Curriculum, with an English as an Additional Language (EAL) program to support learners. Thai language and culture are taught as regular subjects across Early Years to Secondary, with native and non-native groups and Thai national progression to IGCSE Thai. Mandarin Chinese is offered as a modern foreign language from Year 1, with three weekly lessons delivered by native-Mandarin teachers; Primary students pursue the Youth Chinese Test (YCT) and Secondary students pursue the HSK.
RBIS uses English as the main language of instruction within the British Curriculum. There is no school-wide bilingual program described. Thai language and culture are taught as regular subjects. Mandarin Chinese is taught as a modern foreign language.
RBIS International School in Bangkok serves children aged 2 to 18, following the English National Curriculum from Early Years Foundation Stage through IGCSE, then post‑16 pathways including A‑Levels, BTEC, or a High School Diploma. The school offers small class sizes - Nursery capped at 12, Primary and Secondary up to 20 students - and includes an English as an Additional Language (EAL) programme and a Nurturing Programme for students with special educational needs. RBIS provides special weekly Thai language and culture lessons, and students from Year 1–6 may join the English Explorers programme to build confidence in English through phonics, swimming, art and topic-based learning. STEM is highlighted through a dedicated STEM week, showcasing hands-on activities and project work.
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