What does moving from H5 to H2 actually require?
An H5 sits at roughly 55% and an H2 at roughly 75% — that's a 20-percentage-point gap, which sounds large but is achievable in most Leaving Cert subjects with focused work. The gap is not about intelligence. In the majority of cases it comes down to three things: gaps in core concepts that were never properly filled, exam technique that hasn't been coached, and inconsistent study without a structured plan. Grinds address all three directly — but they cannot replace the hours a student puts in between sessions.
The students who make the biggest jumps are not always the most naturally able. They are the ones who show up consistently, do the work set between sessions, and start early enough to build foundations rather than just cram before the exam.
By subjectRealistic timelines by subject
Subject matters enormously when estimating how quickly a grade can move. Here is an honest breakdown based on the subjects TGE covers.
Maths Higher Level typically takes 4 to 6 months for a genuine H5 to H2 move with one to two sessions per week. Maths is cumulative, meaning gaps from earlier topics slow progress on later ones. Starting in September or October of 6th year gives enough runway. Starting in February is possible but usually requires two sessions per week minimum and disciplined practice between them.
English can often move faster, with 2 to 4 months being realistic. English H2 is more about technique than content, and comparative, single text, and poetry all have learnable frameworks. A student who understands the marking scheme early can move grades faster in English than in almost any other subject.
Economics and Accounting usually sit in the 3 to 5 month range. These subjects reward structured understanding of a defined syllabus, and once the core definitions and mechanisms click, exam performance tends to jump quickly. Both are well-suited to one-to-one grinds because misconceptions can be corrected immediately.
Science subjects such as Biology, Chemistry, and Physics usually need 4 to 6 months depending on which units are weak. They carry a high content load, so earlier starts almost always help. History can move in 2 to 3 months for a focused student because it is largely about essay structure and knowing the right material for each question. Both of those are coachable quickly.
Weekly paceHow many grind sessions per week does it take?
One session per week maintains progress and fills gaps gradually — it is the right pace for a student who is broadly on track but wants to push from H4 to H3 or H3 to H2. Two sessions per week is what actually drives a meaningful grade jump within a single academic year, especially for Maths or Science. Three sessions per week in the final 6 to 8 weeks before the Leaving Cert is a common pattern for students who started later than ideal — it works, but it is more pressured and requires the student to be in a stable enough headspace to absorb that intensity.
The quality of the time between sessions matters as much as the sessions themselves. A student who does 45 minutes of focused practice after each grind will consistently outperform one who attends sessions but does nothing in between.
Learning differencesWhat if my child has a learning difference like ADHD or dyslexia?
Students with ADHD, dyslexia, dyspraxia or autism can absolutely make the same grade jumps — sometimes faster, once they are working with a tutor who understands how they learn. The timeline does not change significantly, but the approach does. Sessions need more structure, clearer chunking of material, and more frequent check-ins on what has actually been retained. Students with dyslexia in particular often make rapid English grade gains once exam technique is adapted to their processing style.
If your child also has SEC accommodations — extra time, a reader, or a spelling and grammar waiver — a good tutor will factor those into how they prepare for exams, not just how they teach the content.
Starting lateWhen is it too late to start?
It is not too late to start grinds even in April or May of 6th year, but the goal shifts. With 6 to 8 weeks to the Leaving Cert, the focus moves from filling conceptual gaps to maximising marks within what the student already knows — exam technique, question selection, time management, and high-value topic targeting. A student who starts in April will not build deep mastery, but can absolutely pick up 10 to 15 percentage points in the right subjects with focused preparation. Maths, Economics, Accounting, and History all respond well to this kind of targeted late push.
The honest ceiling is that if a student has fundamental gaps in Higher Level Maths and starts grinds in May, the realistic outcome is a stronger H4 or H3 rather than H2. That is still a meaningful result, and sometimes switching to Ordinary Level with a strong OL grade is the right strategic call, which a good tutor will raise honestly.