ipso! International School is a state-approved bilingual all-day school at Bahnhofstrasse in Rheinfelden, in the canton of Aargau near Basel. It takes children from about eighteen months in its Early Childhood Centre, then a bilingual primary school for Grades 1 to 6, and lower secondary for Grades 7 to 9. Kindergarten and primary follow the International Baccalaureate Primary Years Programme, which the school has been accredited to deliver as an IB World School since autumn 2015; lower secondary follows the Aargau cantonal curriculum bilingually. Teaching is in German and English, with French added from Grade 5 and Swiss German used in daily school life.