How to Start Grade 12 Strong

By Connor Engels, OCT · 27 July 2026

Why this year feels different

In Grade 11, a rough first term was recoverable. In Grade 12 it is still recoverable, but the maths get tighter, because your marks are now doing two jobs at once: they are your grades, and they are your application.

That is the real change. Not that the work is harder — for most students the jump from Grade 11 to Grade 12 is smaller than the jump from 10 to 11. What changes is that the marks stop being feedback and start being evidence.

What universities actually look at

Ontario universities generally look at your top six 4U/4M courses, including any prerequisites the program requires. Two things follow from that, and most students only realise the second one in March.

• Your prerequisite courses are not optional to do well in. A strong average with a weak mark in a required course is a weaker application than the average suggests.
• First-term marks are what early offers are based on. Final grades decide your ultimate admission, but the mid-year marks are what most schools see when they make early conditional offers.

Check the specifics before you plan around them. Course requirements, deadlines and how each school weighs mid-year marks vary by university and by program, and they change year to year. Your guidance counsellor and each program's own admissions page are the authority — not a blog post, including this one.

September: build the habit, not the schedule

Almost every student starts September with a colour-coded plan. Very few are still using it in November. The plan is not the point; the habit underneath it is.

Pick one thing and make it automatic:

• A fixed time and place you work, most days, even briefly. Consistency beats duration by a wide margin at this age.
• Write down every due date in one place the day you receive it. Not several places. One.
• Read the first assigned text properly, not in summary. The habit you set on the first novel or first lab is the one you keep for the year.

September is also the cheapest month to ask for help. A concept gap identified in week three is an hour of work. The same gap in January is a unit.

October and November: this is where the average is decided

The first report card of Grade 12 has an outsized effect on the rest of the year, and not only because of early offers. It sets what students believe is possible for themselves, and that belief tends to become self-fulfilling in both directions.

Two specific things to watch:

The subject you have quietly given up on

Most Grade 12 students have one course they have privately decided they are "not good at." That course is almost always the one dragging the top-six average, and it is almost always a knowledge gap from a previous year rather than an aptitude problem. It is worth naming honestly and addressing directly, because it is usually the single highest-return fix available.

Writing, in every subject

Marks in English, history, and the social sciences are decided by how well you construct an argument, not how much you know. Students who improve their writing tend to see marks rise in several courses at once, which is why it is the most efficient thing to work on if you are stretched.

December and January: applications collide with exams

This is the pinch point of the year, and it is entirely predictable — which means it is entirely avoidable.

Ontario applications go through OUAC, and several competitive programs also ask for a supplementary application with written responses. Those deadlines land near exams and near the January application deadline. Students who leave both to January end up doing their applications badly, their exams badly, or both.

The fix is unglamorous: draft your supplementary responses in November, when you have nothing else due. They will not be good yet. That is fine — a rough draft in November becomes a strong answer in January with two hours of editing, whereas a blank page in January becomes whatever you can produce in a panic.

Deadlines and requirements change annually, so confirm the current dates on OUAC and each program's admissions page early in the fall rather than assuming last year's calendar.

February to April: the quiet danger

Once early offers arrive, motivation drops. It is completely understandable and it is where a real number of students damage an admission they had already earned.

Early offers are conditional. They are conditional on your final grades, and universities do revoke offers when final marks fall materially below the condition. The second half of Grade 12 is not a formality.

If motivation is the problem — and by March it usually is — the honest fix is not discipline. It is having something concrete to work toward: a specific final mark, a scholarship threshold, a course you want to be ready for in first year.

The one thing worth more than any of this

Ask for help earlier than feels necessary. Not because tutoring is the answer to everything, but because the cost of a knowledge gap in Grade 12 compounds faster than in any previous year, and students consistently wait until the gap is expensive before naming it.

The students who have the best Grade 12 years are rarely the ones who worked the most hours. They are the ones who identified the two or three things that actually mattered in September, and spent the year on those.