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Accreditations and affiliations Yokohama Christian School publicly lists: - Association of Christian Schools International (ACSI): YCS is a member school and uses ACSI-approved materials in its teaching. This places the school within a global Christian-school network and aligns it with Christian education standards. ACSI is also the body that runs the STAR program, a pre-accreditation path toward formal accreditation. The school notes it is pursuing ACSI accreditation and, in parallel, aims to pursue WASC accreditation in the near future. - STAR Program (Steps Toward Achieving Recognition): The STAR program is an ACSI pre-accreditation development designed to help schools establish policies and administrative structures needed for formal accreditation. Yokohama Christian School has completed steps of this program since 2015, with ongoing work toward full accreditation. - Tokyo Association of International Preschools (TAIP): YCS is a TAIP member, indicating involvement with the network of international preschools in the Tokyo area. - Japan Evangelical Missionary Association (JEMA): YCS is an endorsed ministry of JEMA, reflecting alignment with Japan's evangelical mission community. - Christian Academy in Japan (CAJ): YCS is an affiliate school of CAJ, linking it with other Christian international schools in Japan. - CAJ affiliation and the listed accreditations appear together on the school's “Accreditations & Affiliations” section, confirming these connections.
Yokohama Christian School (YCS), founded in 2002, is located in Yokohama’s historic Bluff (Yamate-cho) area and serves children from Preschool through Grade 5. The elementary program uses an American Classical Christian curriculum, including resources such as Shurley English, Saxon Math and Bible materials. The school notes that social studies draws on students’ backgrounds and the school’s Japan location. YCS also offers an enrichment program across ages that includes art, music, PE, Latin, library, technology and worship, with Japanese listed as part of enrichment in the admissions FAQ. For after-school options, the school lists clubs such as Children’s Choir, Book Club, Homework Club, Multimedia Club and Running Club. The school also describes an After School Care program with extended options.