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Thailand, Bangkok
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The school operates a trilingual program in English, Chinese, and Thai. It offers the IB Primary Years Programme (PYP), Middle Years Programme (MYP), and Diploma Programme (DP). English is the language of instruction from Grade 5 to 12, with Mandarin Chinese and Thai taught as world languages. Additional language support is provided in English, Chinese, and Thai.
The school provides bilingual instruction in English and Mandarin Chinese in the Early Years and Primary Years through immersion; Thai is taught as a third language and integrated as part of the three-language program.
English-Chinese immersion runs from Pre-K to Grade 4. In Grade 5, English and Chinese language arts are taught separately, with English as the core language of instruction while Chinese is taught as an additional language into the upper grades. Thai is taught as a world language alongside other languages; French and Spanish are offered in secondary school.
Concordian International School, founded in 2001 and situated along the Bangna‑Trad Highway, is a full Pre‑K to Grade 12 IB World School educating around 1,100 students in Greater Bangkok, Samut Prakan . From Nursery to Grade 4, children learn via a trilingual immersion program—roughly 45 % English, 40 % Chinese and 15 % Thai—and from Grade 5 onwards the curriculum transitions to fully in English, with Chinese and Thai as academic subject languages . The school offers all three IB programmes, PYP, MYP, DP, and typical class sizes are 16–18 students. Facilities include multiple sports venues (pools, courts, gyms), with strong participation in AISAA competitions . Unique to Concordian is its Chinese‑English immersion in early years, supported by a wide range of clubs, from robotics, chess, community service, and performing arts to Chinese language and yoga.
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