High School Students

Fast, flexible, accredited and 100% online.

Ready to earn credits for your OSSD? We make it easy. Our high school courses are supported by great teachers and affordable.

Our online high school courses are perfect for students that require more flexibility in their study schedule. We offer engaging high school courses with certified teachers and 24/7 online tutoring. Our online high school course credits are accepted by public high schools, universities and colleges in Ontario and provinces like British Columbia. Connect with us to learn more!

Why take a course with OES?

1. Upgrade Your Marks For University or College — With Confidence

Many Ontario high school students register with OES as they search for online high school courses with flexibility. We offer a range of compulsory and elective courses for grades 9 through 12 in subject like english, science and math. We also offer upgrade courses which are courses you need to repeat in hopes or earning a higher mark for post-secondary admissions. These courses generally have a reduced workload. Connect with us to learn more.

2. Finish Your Diploma — Anytime

Some students enrol with OES to earn a high school credit course in which they were previously unsuccessful or are missing. With our supportive Ontario Certified Teachers (OCT) and 24/7 online tutoring service we will do our best to help you succeed and get the credit(s) you need.

3. Fast-Track — Conveniently

Students also take courses with OES to free up their timetable for the upcoming school year, to avoid timetable conflicts, or to earn a credit not available anywhere else. Learn more here.

If you’re ready to enroll into our Ontario accredited high school courses please begin by visiting our How Does it Work? page. Included in the fee are all materials, instruction by an Ontario Certified Teacher, tests, modules, simulations examinations, and access to an online tutor which is a 24/7 on-demand and completely online service.

Want to speak to a Guidance Counsellor? Book a time here

Student Stories


Shazaib is a graduate of Ontario eSecondary School and current University of Waterloo Physical Sciences student who was looking to improve the grades of his previous earned credits. He was enrolled in several science and math courses through OES, including SPH4USBI4UMCV4UMHF4U. Shazaib was taking these courses in order to get a better understanding of the concepts after taking the course through a different institution and not fully grasping the concepts. He chose Ontario eSecondary School to take all four courses.

Read more about his experience here

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