Keystone School is an inquiry-based IB World School for Grades 6 to 12 that equips students with the skills and mindset to thrive in a rapidly changing world. Located at 186 St. George Street, just steps from the University of Toronto, our vibrant campus welcomes both local and international learners, fostering a community of global citizens through project-based learning and personalized academic pathways.
Average Class Size
IB World School
University/College Acceptance Rate
Student:Teacher Ratio
Life at Keystone
Students enjoy a close-knit community with access to nearby university labs, libraries, and athletic spaces. After-school clubs, local partnerships, and city-based learning experiences bring classroom concepts to life.
Our mentorship program connects younger students with senior peers and staff mentors, helping them navigate academics, friendships, and personal growth. This spirit of connection builds confidence, belonging, and leadership from day one.
Learning at Keystone extends far beyond textbooks — our guest speaker series brings professionals, alumni, and community leaders to campus to share real-world insights and inspire students to see the possibilities ahead. Whether it’s a scientist from the University of Toronto, an entrepreneur, or an artist, students are encouraged to ask questions, challenge ideas, and discover their own path forward.
Keystone students develop the curiosity, compassion, and independence to thrive — not only in school, but in life.
Global Perspectives, Local Inquiry-Based Impact
At Keystone, we cultivate global citizens who ask questions and seek answers from diverse perspectives. Our students embrace international-mindedness, broaden their horizons on a daily basis, and continually enrich their understanding of the world. Keystone School isn’t just a place to learn; it’s a community where students embark on a transformative journey, building the foundation for a lifetime of success.
IB Diploma Programme
Keystone School is a candidate for the International Baccalaureate (IB) Diploma Programme, with authorization targeted for the 2026-2027 academic year. Students will have the option to pursue the IB DP, reflecting our commitment to providing a globally recognized, rigorous education tailored to diverse goals and interests.
Leadership and Engagement
Students at Keystone are encouraged to take on leadership roles and participate in various clubs and activities, fostering a sense of responsibility and community. These opportunities help them develop teamwork, communication, and responsibility, and foster in them a strong sense of community and the urge to make a positive global impact.
Take a look at what Keystone parents have to say about their children’s experience.
Life After Keystone
I was prepared for a stressful and uncertain final year of high school, but with the support, kindness, and generosity of those in the Keystone community, this school year became truly memorable. From the very first day, our teachers made me feel comfortable enough to know that I could confide in them any time I needed to. Keystone is truly a supportive and caring environment.
At Keystone School, I found a welcoming environment that balanced challenge with support. The initial adjustment was made easier by the friendly atmosphere fostered by both students and teachers. Throughout my time there, the academic program pushed me to excel, and the guidance of the faculty prepared me well for university. Reflecting on my experience, I appreciate the friendships made and the lessons learned, which have contributed to my personal and academic development. While leaving Keystone behind brings mixed feelings, I am grateful for the foundation it provided as I move forward.
After two years of studying at Keystone, I can confidently say that in this relatively short period, I’ve managed to forge a strong relationship and connection with the school. Beyond that, I’ve also laid the groundwork for my education, acquired valuable knowledge, and gained practical experience that will undoubtedly serve me well in university and beyond. For this privilege, I feel both honoured and deeply grateful.
If I had a chance to go back in time, I definitely would choose to study at Keystone again! I am thankful for all the encouragement, support, assistance, valuable feedback and kindness. The knowledge that I was awarded with at Keystone is extremely helpful for me now, as a university student.
I found it so easy to make new friends when I first came to Keystone School, students and teachers both made me feel so welcome. I was really happy there and enjoyed attending school every day. My teachers were fantastic motivators, and the academic program was excellent. My time at Keystone School was extraordinary.
The experiences I’ve had at Keystone have all shaped who I am today, and I can’t imagine myself anywhere else. I am really grateful for all of my experiences at Keystone, as well as the life-long friends that I made. Being a senior, I have bittersweet feelings about leaving this community behind, yet, I know that the ideals and values of Keystone will stay with me wherever I go.
Keystone School helped me so much with my organizational skills and time-management. The structure of the classes at Keystone also prepared me for university. I loved the environment, it was so easy to make friends with students from all over the world.
I joined this school with the intention of preparing for university. Keystone’s teachers are experienced, knowledgeable and caring. The contents and styles of teaching are perfect preparation for university.
I enjoyed my time at Keystone very much, especially because I felt welcomed from the first day I arrived. It is always a pleasure to return and visit the teachers and administrative staff who impacted my life so significantly. I feel that my courses and the relationships I formed prepared me for my time in university.
I found it so easy to make new friends when I first came to Keystone School, students and teachers both made me feel so welcome. I was really happy there and enjoyed attending school every day. My teachers were fantastic motivators, and the academic program was excellent. My time at Keystone School was extraordinary.
Application Process
At Keystone School, we welcome applications throughout the year.
Book a School Tour
Experience Keystone’s vibrant community by visiting our campus. Meet our staff, connect with students, and discover our unique approach to education. Parents are welcome to schedule tours with or without their child.
Experience a “Day at Keystone”
Immerse yourself in the Keystone experience! Students can spend a half or full day on campus, attending classes, meeting teachers, and connecting with peers. It’s the perfect way to discover what makes Keystone unique and see if it’s the right fit for you.
Submit Your Application
When you’re ready to take the next step, complete our online application form. Upload your ID and your most recent transcript or report cards from the past three years to get started. (If further documentation is needed, our Admissions Coordinator will request it after reviewing your application.)
Receive an Offer of Admission
Following a review of your application and a brief student interview, we will issue you an official Offer of Admission. This document will outline the next steps to officially join the Keystone community.
