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K. International School Tokyo (KIST) is a private, co-educational day school in Koto-ku, about three kilometers east of Tokyo Station and close to Kiyosumi-Shirakawa Station. It serves students from K1 (age 3) through Grade 12 and teaches in English. KIST offers the IB Primary Years Programme (K1–Grade 5), an original Lower Secondary Programme (Grades 6–8), Pearson Edexcel IGCSE courses (Grades 9–10) and the IB Diploma Programme (Grades 11–12). The school is also designated as a SAT test center, and all students sit a PSAT in Grades 9 and 10.