Grades 9-12

The Ontario Secondary School Diploma, taught in Nairobi.

Thirty credits, the Ontario literacy requirement and 40 hours of community involvement - delivered on campus in South C and recorded on official Ontario Student Transcripts.

What it takes

Requirements for the OSSD

Every student follows the same requirements as a student graduating in Ontario. Nothing is abridged for being outside Canada.

To graduate, students complete

  • 30 credits in total - 18 compulsory and 12 elective
  • The Ontario Secondary School Literacy requirement
  • 40 hours of community involvement, completed locally in Nairobi
  • Attendance and participation, which Ontario requires and which forms part of assessment
How grades work

Your grade is built, not gambled

In most examination systems two years of work rest on one sitting. Under the Ontario system, the majority of each course grade is earned steadily through the year.

65% coursework

Assignments, projects, presentations and tests completed across the term.

Final assessment

The remainder comes from a final examination and a culminating task.

One bad day is survivable

Because assessment is continuous, a single difficult morning does not define the result.

Course areas

What students study

Students build a Grade 12 course load across the subject areas universities look for, rather than narrowing to three subjects at sixteen.

EnglishAdvanced FunctionsCalculus & VectorsData ManagementPhysicsChemistryBiologyComputer ScienceBusiness LeadershipInternational BusinessEconomicsWorld IssuesMedia StudiesVisual Arts

Ready to start Grade 9 to 12 with us?

Places for the September 2026 intake are open now.

Common questions

Questions about the OSSD programme

How many credits are needed for the OSSD?
Thirty credits in total: eighteen compulsory and twelve elective, plus the Ontario Secondary School Literacy requirement and 40 hours of community involvement.
How are students graded?
65% of each course grade comes from coursework, assignments and tests completed through the year. The remainder comes from a final examination and a culminating task.
Do the 40 community hours have to be done in Canada?
No. Students complete their 40 hours of community involvement locally in Nairobi with community organisations.
Who awards the diploma?
The OSSD is issued through Kisomo International Collegiate in Toronto, an accredited private high school inspected by the Ontario Ministry of Education.
Admissions

Speak to our admissions team

Tell us about your child and we will come back within two business days with the entry point, the courses they need and the fee schedule. Prefer to talk now? WhatsApp us on +254 758 114 492.

What happens next

  • We review the school reports or results you send us.
  • We confirm the entry point and any credits that transfer.
  • You receive the fee schedule and an invitation to visit the campus.
  • Your child starts at Prepville in South C, Nairobi.

Visit the campus

  • South C, Nairobi, Kenya
  • WhatsApp or call +254 758 114 492
  • Monday to Friday, 8:00 AM - 4:00 PM

By submitting you agree that Prepville Canadian International School may contact you about your enquiry.

Prepville Canadian International School

The Ontario Secondary School Diploma, delivered in Nairobi through our partnership with Kisomo International Collegiate, an accredited private high school in Toronto, Canada (BSID 669857).

Visit us

WhatsApp +254 758 114 492 Call +254 758 114 492 South C, Nairobi, Kenya Mon-Fri, 8:00 AM - 4:00 PM
© 2026 Prepville Canadian International SchoolOntario curriculum · Canadian OSSD · Nairobi, Kenya