Japan, Tokyo
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English is used in instruction across CGK's Kannai and Bashamichi campuses. The Bashamichi Campus page lists ENGLISH and JAPANESE on its campus information, indicating English-language instruction alongside Japanese. All students receive daily Japanese education. Japanese language instruction is organized into JLL (Japanese Language and Literature) and JAL (Japanese as Acquisition Language) classes. JLL follows the standard Japanese national curriculum (MEXT); JAL uses original teaching materials to support language acquisition and expression. Both JLL and JAL classes run daily for all grades and are integrated with the IB framework.
The Bashamichi Campus operates with English and Japanese language streams, reflecting a bilingual environment for age 2-3 students. All CGK students receive daily Japanese language education as part of the school's Japanese program. There are two Japanese language tracks: Japanese Language and Literature (JLL) for native-level Japanese and Japanese as Acquisition Language (JAL) for non-native speakers. Each track provides language-specific instruction and content, with one class per day for JLL and JAL across all grades.
CGK International School’s Bashamichi Campus is a preschool campus for Age 2 and Age 3 children located in Naka-ku, Yokohama. The campus is within walking distance of Bashamichi Station (about 3 minutes), as well as Sakuragicho and Kannai stations, making it accessible from central Yokohama and nearby areas. According to the school, CGK is an IB PYP World School and received authorization to deliver the International Baccalaureate Primary Years Programme (PYP) in July 2024. The preschool programme includes structured physical education and monthly swimming lessons conducted at a nearby indoor heated pool. In addition to the core preschool programme, the school offers fee-based after-school optional classes from 4:30 p.m., such as Programming in English, Dance and Japanese-language programmes including Pygmalion and Ronri Engine. A school bus service is available for preschool students. CGK also notes that English is used as the main language at school, with Japanese taught as a subject, supporting children who are growing up in an international environment in Japan.