Ontario Secondary School Diploma (OSSD) Program – Mississauga
Earn Your Ontario Secondary School Diploma in Mississauga
McDonald International Academy (MIA) offers a fully accredited Ontario Secondary School Diploma (OSSD) program – Mississauga designed to prepare students for university, college, and global career success. Located in Mississauga, MIA provides a supportive academic environment where students from across the world thrive both academically and personally. With certified Ontario teachers, individualized guidance, and a structured curriculum, students receive a high-quality education that meets provincial standards.
Established in 1994, McDonald International Academy is inspected by the Ontario Ministry of Education and has graduated more than 20,000 students from over 50 countries. Our dedication to academic excellence and student achievement makes us a top choice for families seeking a recognized Canadian high school diploma.
What Is the OSSD?
The Ontario Secondary School Diploma (OSSD) is the official high school credential awarded by the province of Ontario. The Ontario Secondary School Diploma (OSSD) program – Mississauga at MIA follows all Ministry curriculum requirements, ensuring students earn a diploma that is recognized across Canada and internationally.
To graduate, students must complete:
30 credits (18 compulsory and 12 elective)
40 hours of community involvement
The Ontario Secondary School Literacy Test (OSSLT) or literacy course
Two online learning credits (as required by the Ministry)
Our Ontario Secondary School Diploma (OSSD) program – Mississauga supports students in Grades 9–12, as well as mature learners completing their secondary education.
Academic Structure and Pathways
The structure of the Ontario Secondary School Diploma (OSSD) program – Mississauga ensures students develop strong foundations in core subjects while exploring individual interests.
Compulsory Credits (18)
Students complete required courses in English, Mathematics, Science, Canadian History, Canadian Geography, French, The Arts, Health and Physical Education, Civics, and Career Studies. These courses provide a well-rounded education, preparing students for academic success and post-secondary opportunities.
Elective Credits (12)
Electives allow students to focus on subjects aligned with their career or university goals. At MIA, students in the Ontario Secondary School Diploma (OSSD) program – Mississauga can choose courses in advanced sciences, business, economics, or humanities, depending on their aspirations.
University Preparation Advantage
A major strength of the Ontario Secondary School Diploma (OSSD) program – Mississauga is its focus on post-secondary preparation. Students receive personalized academic counseling to select Grade 11 and 12 courses that meet university entrance requirements. Many graduates have been accepted into top Canadian and international institutions.
Small class sizes allow teachers to provide individualized attention, helping students strengthen subject knowledge, develop effective study habits, and build confidence. Our educators are certified Ontario teachers dedicated to academic excellence and student success.
Study in a Safe and Diverse City
Mississauga is one of Canada’s most livable and multicultural cities. Students benefit from a safe, clean, and welcoming environment, while enjoying access to cultural experiences, recreational facilities, and educational institutions. Enrolling in the Ontario Secondary School Diploma (OSSD) program – Mississauga provides a rich academic and social experience.
Our campus is conveniently located near public transportation and community resources, giving students easy access to learning opportunities and city amenities.
Comprehensive Support for International Students
McDonald International Academy provides extensive support for international students enrolled in the Ontario Secondary School Diploma (OSSD) program – Mississauga
Our services include:
Homestay and residence placement
Airport pickup assistance
Bank account and orientation guidance
University and college application support
Ongoing academic advising
Our “Total Care” approach ensures students feel supported academically and personally throughout their time in Mississauga.
Modern Facilities and Student Life
Students in the Ontario Secondary School Diploma (OSSD) program – Mississauga have access to modern classrooms, computer labs, Wi-Fi, student lounges, and collaborative learning spaces. Extracurricular activities and field trips further enhance the learning experience, allowing students to engage socially while developing leadership and teamwork skills.
Education at MIA goes beyond textbooks. We focus on nurturing responsible, globally aware individuals prepared for lifelong success.
Apply Today
Choosing the right high school shapes your academic future. McDonald International Academy combines quality education, certified teachers, and a welcoming environment to ensure every student thrives. If you are seeking a trusted Ontario Secondary School Diploma (OSSD) program – Mississauga, MIA offers the academic excellence and supportive community you need to succeed.
Apply today to take the next step toward earning your Ontario high school diploma in one of Canada’s most dynamic and student-friendly cities.