Keystone International Schools opened Kilittaşı Schools in 2013 for students with Turkish and dual citizenship. Students who are not citizens of the Republic of Turkey are accepted to our Keystone International School. Keystone Schools opened to benefit students who are citizens of the Republic of Turkey from the international education model. As the students of Keystone Schools grow, they learn English in a natural environment; Through school life, students develop a vision of a simple and minimalist life. With the dual program (English /Turkish), the student learns to think flexibly, which is one of the essential skills in all areas of life. While continuing their education with Turkish teachers and the MEB program during the day, they complete the day with the Ontario program accompanied by a Native teacher. On the same day, the students from two different countries.