Fast & Flexible High School CreditsWith Our Ministry Accredited Courses. Its Never Too Late to Enroll.
of our students
Why Take a Summer School Course with OES?
Need to earn an Ontario high school credit this summer? Students enrol with us to upgrade their marks, meet university or college admission requirements, retake failed courses, or work ahead for the following school year.
Summer is a busy time, that’s why you can register for OES courses anytime — the fast, convenient way to complete a high school credit.
Upgrade a Mark
Many summer students register with OES to upgrade a mark by repeating a course which you can complete in as quickly as 4 weeks. We have listed our most popular upgrade courses under the courses tab at the top of the page. However, any course can be upgraded for a better mark and it will be added to your existing transcript. You can learn more about eligibility for these courses here.
Retake a Failed Course
Some students enrol with OES to earn an OSSD credit course in which they were previously unsuccessful. Whether you need an elective or compulsory credit we can help!
Students also take summer 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.
Grade 8 students, or students who have recently completed Grade 8, sometimes choose to earn OSSD credits with OES before they begin secondary school. Be sure to review the reach ahead program eligibility and consultation requirements before registering.
Ready, Set, Learn. Get Started Today!
Useful Articles for Your High School Journey
Read what our students have to say
It was a great experience with OES High School and the teacher, Mr. Reel, as well as the administrator, Mara, are very kind, understanding, and responded to all of my emails super fast! I highly recommended OES to all students who need any high school credits! Thank you so much OES, I am very happy with my involvement with you!misha birdi1/18/2024
I had an incredible experience at Ontario eSecondary School while taking the MDM4U credit with Mr. Reel. His teaching made learning Data Management both enjoyable and understandable. Also, Mara's exceptional support during and after the enrollment process made everything quick and seamless. The kindness and support shown by everyone at OES made learning so much more easy and fun!Fatima Waqar1/03/2024
My experience with OES is summarised in one word "Phenomenal". I highly recommend this institution to anyone who would like to improve or expand your educational requirements. Both the teachers and administration are professionals and provide top-notch services with outstanding quality . The programs allows the flexibility to complete at your own pace, which is important.
Thanks OES!!Niala Rampersad11/29/2023
Ontario eSecondary School was such a great opportunity for me and I really enjoyed the work that I did with them. Their courses are well structured, ensuring student success and understanding. I felt that I always had someone to ask when I had questions or concerns and my teachers were extremely quick with their responses. Since I was able to complete all my course work on my own, I learned a lot about time management and was able to meet my program requirements on time. I would 100% recommend courses from this school for anyone looking to upgrade their highschool course requirements or finish highschool. Good luck!Poomeja10/19/2023
My daughter took a grade 9 geography course and had a wonderful experience! Her teacher was very responsive and the course material was excellent and just the right amount. We will definitely be coming back to this online school in the future.Lisa Roth9/11/2023
As this program offers, it's a way for anyone to obtain credits through an method with 24/7 assistance with an on-demand, unlimited and fully online tutoring service. Fast and accessible as you work at your own pace to fit your schedule.
I was given a yearly time period to complete a course and finished within 3-4 months. Your assigned teacher isn't obligated to delegate you, but just like any field of learning. There're expectations and deadlines.Raymond Chan4/04/2021
My son recently completed Challenge and Change, a grade 12 social science course from overseas. His experience from registration, through to course work, exam competition and facilitating his grade to his transcript was exceptional, responsive, and professional. His teacher Mara was more engaged than many of his previous in-person teachers. Thank you!!!Jody Young3/05/2021
This was a very great experience and I really enjoyed. It had comfortable timeline, great teachers and they helped me a lot to understand and learn.VIRA VATCHA2/22/2021
Excellent program and support from my son's kind teacher and other great staff. Love the tutoring service available as well. Fun novel and projects!clay9560 clay95602/08/2021
I had a great experience, my teacher was quick to respond and considerate of my needs as a student, and I'm very glad I decided to take courses from this program. highly recommend to anyone that's looking to get a few extra creditsMaia Kalev1/10/2021
OES is a highly professional online post secondary school which enables anyone to be able to earn high school credits or even upgrade high school marks. The administration, staff and teachers are all extremely helpful and supportive. I would absolutely recommend them to anyone!!!
Thank you OES!!! 😄Linda Sirota1/09/2021
Amazing school experience where the teachers are there to help facilitate learning and excellence, not to put their students down, like many teachers do. I re-took grade 11 university functions and received a much better education and final grade than my experience in public schooling in Southern Ontario. I would highly recommend this if you are organized and can meet your own deadlines.Derek Ford12/07/2020
One of the best school and experience I had.
Easy and comfortable timeline, professional teachers and principal, they did help me a lot to pass everything and explaining everything nice and easy to me regarding my deadline. They do have a 24 hour tutors that can help you to explain at any time I like it I don’t know what to say more but it’s one of the best school.
Thank youAL obaidi12/02/2020
Ontario eSecondary School is by far the best online learning academy in Ontario. My teacher was very great as he was easily accessible, had very fast response times, and was extremely friendly. He even had the chance to do our live meeting on Thanksgiving Monday! The course content for the class I took was great, and will be very beneficial for post-secondary learning. It was amazing that they provided free online tutoring for students, that feature really stood out to me when selecting OES for this course. You will not regret taking a course here!Julia Mesburis11/08/2020
taking a Calculus course with this school was really easy and the support team and the teacher was there for me all the time. the teacher also was very helpfull in explaining idea.Saad Almekhlef10/09/2020
Super fast responses, easy registration. It was a pleasure interacting with them!Meghan Ignatesc9/17/2020
Book a Guidance AppointmentSpeak to one of our experienced staff members