Leadership Team

School Leadership

Keystone International Schools is led by a collaborative academic and counseling team that supports all areas of student learning, well-being, and instructional development.

Dina Islam

High School Principal/College Counselor

As High School Principal, Dina Islam oversees the daily operations, culture, and well-being of the high school community. She works closely with students, teachers, and families to ensure a supportive, respectful, and engaging school environment. As College Counselor, she guides students through every step of the university planning and application process, helping them explore options, prepare strong applications, and connect with universities worldwide. Her leadership centers on fostering a positive school climate, promoting student growth, and ensuring that every learner feels supported and prepared for life after graduation.

Sara Hagras

Guidance Counselor

Sara Hagras is the School Guidance Counselor at Keystone/Kilittaşı Schools in Istanbul. With extensive experience in counseling and supporting students across all grade levels, she is dedicated to fostering student well-being, emotional development, and academic success. Sara works closely with students, parents, and teachers to provide individualized guidance, develop counseling programs, and help create a supportive school environment where every learner feels understood, empowered, and equipped to thrive.

Heads of Department

Reporting to the Educational Director, the Heads of Department oversee the following areas:

  • Primary
  • Applied Courses
  • Math & Science
  • English Language Arts, Social Studies & French

These departments ensure curriculum planning, assessments, and interdisciplinary collaboration across grade levels.

Joana Ozkan

Head of Primary School