AQA, Edexcel (Pearson) and OCR all cover the same national curriculum. They all get signed off by Ofqual. On paper they should be identical. In practice, they ask questions differently enough that a student who would cruise to a 7 on one board can genuinely struggle to get a 5 on another.
This guide is what you actually need to know as a tutor: the personality of each board, how it plays out subject by subject, and which one is hardest for which kind of student. It's a longer read than our other posts because there's no way to be short and useful on this topic.
Market share and why it matters
AQA is the biggest of the three by a wide margin — roughly 55% of all GCSE entries in England. Pearson Edexcel is about 30%, and OCR (owned by Cambridge Assessment) is around 15%. WJEC Eduqas is a fourth player in specific subjects, but we'll focus on the big three here.
Why care about market share as a tutor? Because it determines which past papers are available online for free, which textbooks Amazon stocks, and which exam board your students' schools are most likely to use. If you tutor 15 students you're probably seeing 8 on AQA, 5 on Edexcel and 2 on OCR. Your prep time compounds — the AQA resources you build get reused far more often.
The personality of each board
AQA: the tidy, predictable one
AQA papers tend to have consistent question styles year on year. If your student has done the past 5 years of papers, they've probably seen 80% of the question types that will turn up in June. Command words are consistent, mark schemes are predictable, and the papers are structurally stable.
This is excellent news for tutors. You can pattern-match. You can tell a student “on Paper 2 Question 18 there is almost always a simultaneous equations question with one linear and one quadratic” and be right. Predictability is your best teaching tool.
Edexcel: the international one
Edexcel (Pearson) has a wider remit — it runs the IGCSE for international students too, and the main GCSE pulls styling from that world. Expect more real-world contexts in maths and science, slightly more varied question structures, and a reputation for demanding mathematical precision.
Edexcel Maths in particular has a reputation for being the most mathematically rigorous of the three. Students who like patterns and neat structures often prefer AQA. Students who like applying maths to situations often prefer Edexcel.
OCR: the academically ambitious one
OCR is the smallest of the three and tends to be chosen by more academic schools — grammars, top independents, selective state schools. Their papers are often slightly more content-dense, especially in sciences. Mark schemes sometimes expect more precise terminology than AQA would.
If a student has moved from an AQA school to an OCR school, expect a dip. The content overlaps 95%, but the habits of thought and vocabulary the student needs to pick up marks are slightly different.
Subject by subject: Maths
All three boards share the same content specification. The differences are stylistic and show up mostly at Higher tier.
- AQA Maths (8300) is the most stable. Three 90-min papers, one non-calculator (Paper 1), two with calculator (Papers 2 and 3). Problem-solving questions at the end of each paper tend to follow a familiar pattern. Great for students who learn by drilling past papers.
- Edexcel Maths (1MA1)is the most mathematically rigorous. Same three-paper structure. Problem-solving is richer, and you'll see more multi-step reasoning questions. Good for strong students who think mathematically; harder for students who memorise methods.
- OCR Maths (J560)sits in the middle but tends to ask for the most precise language on “show that” and proof-style questions. OCR students often drop marks on notation — it's worth spending time on notation hygiene.
If a parent asks “which is hardest?”, the honest answer for Maths is Edexcel at the top end (Grade 8/9) and AQA at the bottom end (Grade 4/5) — AQA Foundation is the kindest entry point for students who are struggling.
Subject by subject: English Language and Literature
English is the subject where exam-board differences hit hardest because there's no neutral content to hide behind.
- AQA English Language (8700) and English Literature (8702)dominate the market. Literature uses a rotating set of texts (An Inspector Calls, A Christmas Carol, Macbeth etc.) and Language is entirely unseen-text-based across two papers. AQA Language Paper 2 Section B (non-fiction writing) is the place where students either soar or die — it's entirely about your ability to structure an argument under time pressure.
- Edexcel English Language (1EN0)uses slightly different question stems and tends to reward more analytical precision than AQA. Edexcel's 19th-century extracts are notoriously tricky.
- OCR English Language (J351) has a distinctive focus on spoken language and more explicit study of language change. Less common in state schools; more common in academically selective ones.
For tutors, English Literature is where you need to know your student's text list, not just their board. Two AQA students can be studying entirely different novels.
Subject by subject: Sciences
For Biology, Chemistry and Physics — taught as triple or combined science — the content specifications are extremely close across boards. The differences are in the practicals and the question style.
- AQA Scienceshave the most consistent required practicals (there are 21 across Combined Science). Every practical has a standard method and standard exam question template. If your student has notes on all 21 practicals, they're 80% of the way to top marks on the practical-skills questions.
- Edexcel Sciences emphasise calculation and analytical skills slightly more. Physics in particular is mathematically heavier than AQA Physics at Higher tier. Expect more data-analysis questions.
- OCR Sciences (Gateway and 21st Century) — note that OCR runs two science specs, Gateway (A) and 21st Century (B). Gateway is the more conventional content-led spec. 21st Century is more context-led (think socio-scientific issues). Check which one the school is using — tutors sometimes prep for the wrong one.
History, Geography and other humanities
History and Geography have larger swings between boards because the topics themselves are different.
AQA History is the biggest and covers Germany 1890– 1945, America 1920–1973, Norman England and Elizabethan England most commonly. Edexcel History has a wider spread of choice including Medicine through Time, Warfare through Time, and a range of depth studies. OCR History splits into Schools History Project (SHP) and Explaining the Modern World routes.
The practical advice for tutors: never assume two “History GCSE students” are studying the same content. Ask for the exam code (9-1 AQA, 1HI0 Edexcel, J411 OCR) and the specific options they sit.
Which board is hardest overall?
The honest answer is: grade boundaries are the equaliser. Ofqual adjusts boundaries each year so a Grade 7 on AQA, Edexcel and OCR represents roughly the same level of attainment. What differs is the path to that grade.
- Strong students tend to find Edexcel the most rewarding — the harder questions give them room to show depth.
- Struggling students tend to find AQA kindest — Foundation tier is well-scaffolded and the predictability of question styles lets them build confidence.
- Academically trained studentsat grammar or selective schools often do well on OCR because the precision expectations align with how they're being taught.
None of the three is universally “harder”. The question is which one matches your student's cognitive style best — and typically the school has already made that choice.
What this means for you as a tutor
Three practical takeaways:
- Always ask for the exam code on the first session. Not just “AQA” — “AQA GCSE Maths 8300”. Codes prevent the disaster of prepping for the wrong spec.
- Build your resources by board, not by topic.A folder called “Quadratics” is less useful than “AQA 8300 quadratics”, because the questions are board- specific. Tutors who organise by board compound their prep time the fastest.
- Tell parents plainly which board you specialise in. If you're brilliant at AQA Maths and weaker at Edexcel, say so. Parents appreciate specificity far more than generic expertise.
Tools that help
If you tutor across more than one exam board — and most tutors do — keeping your content organised is the single biggest productivity problem you have. TutorLab's AI is trained on the specifications for all the major boards, so when you generate a lesson plan, homework sheet or exam question you can pick the exact board and tier and the output comes out correctly styled.
We have dedicated landing pages for the most common combinations — AQA GCSE Maths, Edexcel GCSE Maths, OCR GCSE Computer Science and more — each with sample outputs so you can see what you'd actually get. Or start the 7-day free trial and spin up a plan of your own.