GUEST POST
Nicolas is a First-Class Maths graduate and Imperial MSc with eight years' experience tutoring A-Level Maths, Further Maths, Physics, Computer Science, Economics and Business Studies. This article explains why the A-Level jump surprises many students and sets out practical early-Autumn routines, diagnostics and subject-specific tips to prevent small gaps from growing.
By Nicolas B | A-Level Maths, Physics and Economics Tutor | Sherpa Tutor
One of the conversations I have most often is with students who performed well at GCSE, chose subjects they genuinely enjoy, and expected Year 12 to feel fairly familiar, just a little more demanding.
And to an extent, that's true. The content is harder. But the more important difference is how much the course assumes students can already do from the very beginning. Algebra needs to be quicker. A written argument needs to demonstrate more than a good memory of the topic. Homework becomes less clearly defined, and some of the most valuable work is never formally set in the first place.
This catches strong students, too. In fact, they can sometimes take longer to recognise the problem because their GCSE results gave them every reason to believe their existing approach was working.
The Further Maths completion figures are quite revealing. FFT Education Datalab found that, among high GCSE attainers, 83% of students who started Further Maths completed it, compared with 92% in A Level Maths. It's a useful reminder that even an excellent GCSE record doesn't make the transition automatic.
That doesn't mean students should spend their summer worrying about A Levels or arrive in September with every evening filled by a revision timetable. A more measured approach is usually far more useful: understand that the expectations have changed, then put enough structure into the week to address small gaps before they become much bigger problems.
At GCSE, accurate subject knowledge can still carry a considerable part of an answer. At A Level, that knowledge remains essential, but it's often only the starting point.
The examiner might now expect a method that can be followed, a clear chain of reasoning, an application to the specific situation in the question or a judgement supported by evidence. A student can understand a topic very well and still lose marks because their answer doesn't demonstrate enough of that understanding, or because they haven't quite mastered the required answering techniques, including the infamous KAAE in Economics.
This is why I like to look at marked work early. Waiting until the first major mock can make a relatively manageable problem appear much larger than it really is. During the first half term, I'd take an answer from each subject, place it alongside the mark scheme and go through it carefully. Where exactly were the marks lost? Was the knowledge missing? Was the method unclear? Or did the answer simply not address what the question was asking?
I'd much rather a student discover in October that their exam technique needs adjusting than spend eighteen months revising in a way that isn't producing the results they want.
We can see a similar emphasis on reasoning in the admissions tests for mathematically demanding university courses. For 2027 entry, Cambridge uses the TMUA for Mathematics, Computer Science and Economics, while Oxford uses it for its Mathematics and Computer Science courses. Oxford Physics and Engineering Science use the ESAT, and Cambridge Mathematics applicants also need to prepare for STEP later in the admissions cycle.
The TMUA consists of two 75-minute papers, each containing 20 multiple-choice questions without a calculator. Much of the underlying mathematics will already be familiar from school, but students are expected to apply it in unfamiliar situations and reason carefully under time pressure.
A Level Maths regularly takes GCSE algebra and places it inside a much larger problem. Rearranging a formula, working with indices, simplifying surds or recognising a quadratic structure might only account for the first few lines of a solution.
If those opening steps still require considerable effort, the student reaches the genuinely challenging part having already used up much of their concentration. They might understand the complete solution perfectly once it's explained, but that doesn't necessarily mean they can produce it independently within the time available in an exam.
The solution is often quite straightforward. I'd introduce a short, focused algebra set two or three times a week during the first half term. Ten or fifteen minutes is a perfectly good starting point. Keep the topic specific, mark the work properly and return to the mistakes a few days later without looking at the corrections.
A general plan to "do more Maths on Sunday" might sound more ambitious, but it's also much easier to postpone. Short, consistent practice provides a much clearer picture of which techniques are becoming automatic and which are still taking too long.
A Level Further Maths also needs its own dedicated space in the week. It shouldn't permanently become the extra subject that gets attention only once the standard Maths homework is finished. Both courses are introducing new ideas while the foundations are still developing, and unfamiliar topics such as complex numbers and matrices benefit from regular practice.
That doesn't mean studying for hours every evening. Even a clearly allocated weekly slot can make a real difference, provided the subject receives consistent attention rather than becoming another weekend catch-up exercise.
A Level Physics students sometimes lose marks despite understanding considerably more than their written answers suggest. They recognise the method, reach for the calculator and record the final answer. Unfortunately, the examiner sees a number with very little reasoning to support it.
A more reliable routine is to identify the principle being used, write down the relevant relationship, rearrange before substituting, keep track of units and check whether the final result makes sense. It can initially feel slower, but it tends to reduce avoidable mistakes and gives the examiner a clear method to reward, even when the final calculation isn't correct.
Computer science reveals a different kind of difficulty. Reading existing code can feel relatively comfortable because the structure has already been provided. Starting from a blank screen is a very different experience.
Students need regular opportunities to break a problem into smaller steps, decide how to structure their solution, test individual components and identify why something isn't working. These programs don't need to be particularly ambitious. A relatively simple program written independently and properly debugged is often much more valuable than spending the same amount of time reviewing several completed examples.
Where the course includes a project, I'd also establish internal deadlines well before the official submission date. A distant deadline can seem reassuringly generous for quite some time, until suddenly it isn't.
In Economics, a definition can get an answer started, but it rarely earns the higher marks by itself. Analysis, application and evaluation are what make the real difference.
One of the weaker essay patterns I see quite regularly is an answer that appears balanced but never really reaches a conclusion. The student explains one argument, presents the alternative and stops. Neither side is necessarily incorrect. The problem is that the judgement has effectively been left to the examiner.
A stronger conclusion commits to a reasoned position and explains the circumstances on which that judgement depends. It might depend on the time period, the size of a change, the condition of the economy or how consumers are likely to respond. Saying "it depends" is perfectly acceptable, but only when the student explains what it depends on and why that matters to the question.
Business answers can suffer from a similar weakness. A student describes the theory accurately, yet the response could apply to almost any company. I'd encourage them to use the actual figures, the firm's market position, its objectives and its constraints. Then explain why those particular circumstances make one course of action more appropriate than another.
The numerical content also deserves careful attention. Financial ratios, break-even analysis and investment appraisal carry marks in their own right, and any written recommendation is only as reliable as the calculations supporting it.
One of the first things I try to establish with a new student is whether the difficulty lies in their understanding of the content or in how they're turning that understanding into marks. Looking at a grade alone rarely tells us which one it is.
I've taught students moving into the UK education system from China, Singapore, Hong Kong, the US, and Australia. In those situations, I wouldn't automatically interpret a disappointing first result as evidence that the student knows less than their classmates. Instead, we'd look at the answers alongside the mark scheme and identify what the examiner was actually able to reward.
Sometimes there is a genuine knowledge gap. Other times, the student understands the material but isn't presenting it in the way the examination expects. A physics answer doesn't show enough working. An economics response contains relevant theory but no supported judgement. A business calculation is correct but never used to justify the recommendation.
Simply reteaching the entire chapter would be a poor use of time in those situations.
That's why I begin with a diagnostic and use the findings to structure the work outside lessons. I generally use printable weekly workbooks containing focused questions, corrections and a short element of timed practice. It keeps the preparation purposeful without leaving students with an open-ended instruction to revise.
The feedback process is more important than the volume of work. Complete the questions, mark them, understand why marks were lost, make the corrections, and revisit the same skill after an interval. Eventually, the improvement needs to be visible in the student's answers and results, not simply in how confident they felt during the lesson.
At GCSE, most schoolwork has a clearly defined structure. There is a task, a deadline and usually someone checking whether it has been completed.
At A Level, some of that structure disappears quite quietly. Nobody necessarily assigns "redo the questions you got wrong on Tuesday" or "rewrite that paragraph using the feedback". Yet these are often exactly the tasks that would make the biggest difference. Students have to recognise their importance and make time for them independently.
The GCSE system was doing more of the organising than many students realised.
One warning sign I pay particular attention to is when a subject starts receiving less and less attention. The other subjects continue as normal, but the one the student finds most difficult gradually slips down the priority list. Homework takes longer to begin, difficult questions are avoided and rereading notes becomes the preferred revision method because recognising information feels more comfortable than testing whether it's actually been learned.
Sometimes this is simply a question of organisation. Sometimes it's avoidance, and those situations need slightly different responses. A more structured timetable may help with the former. With the latter, I'd often make the first task much smaller: six algebra questions, one essay paragraph, or a single function written and tested.
The starting point needs to be clear and manageable enough that the student can begin without spending twenty minutes convincing themselves to do it.
For parents, asking "How many hours did you revise?" isn't always the most revealing question. I'd be more interested in which subject is consistently being left until last, which homework takes the longest to start and which recent assessment the student is least keen to discuss. Those answers often tell us where support would be most useful.
A good September plan needs to work during a busy week, not just when motivation is high and Sunday afternoon is completely free.
Start with a short diagnostic. Use questions covering prerequisite skills or the first topics of the course, completed under timed conditions and without notes. The aim is simple: identify the priorities before the student spends six weeks practising the wrong things.
Give every subject a named slot. Put the subject most likely to be avoided into the timetable first. A focused 25-minute session that actually happens is far more useful than a large revision block that keeps getting postponed.
Produce something. Questions, calculations, paragraphs and code reveal much more about understanding than rereading notes. Revision materials should support independent attempts, not replace them.
Keep a correction record. Nothing complicated is needed. Note the topic, identify what went wrong and record the correct approach. Return to a selection of those mistakes the following week to see whether the understanding has improved.
Review after four weeks. Look at incomplete work, recurring mistakes, timed marks and the topics the student still cannot explain without notes. Adjust one or two things based on what the evidence shows. Rebuilding the entire timetable after every disappointing result usually creates more administration than progress.
I'd also encourage students to protect time for something outside school. Sport, music, a part-time job or another regular commitment can help maintain a sensible routine. Removing everything enjoyable at the first sign of academic pressure might create more available hours, but it doesn't necessarily produce more effective studying.
For students already thinking about university, I'd suggest a small amount of wider subject reading throughout Year 12. One worthwhile article a week, read carefully, is a good starting point. Think about the argument, what was convincing, and what questions it raised. This develops genuine academic curiosity and, where interviews form part of the admissions process, is far more valuable than trying to manufacture an interest a few weeks before applying.
I'd start with something more specific than "revise Year 12". That's simply too broad to be a useful task.
Choose one subject. Carry out a diagnostic, identify the two or three gaps costing the most marks and concentrate on those over the next four to six weeks. Then assess progress again under comparable conditions.
If predicted grades are becoming a concern, it's also worth asking the school what evidence can genuinely influence them. Schools have different policies, and making assumptions about how grades can be changed often leads to unnecessary frustration.
By February of Year 13, the situation becomes more demanding. Older gaps are competing with new content, and the examination timetable is getting closer. Improvement is still possible, but preparation needs to become more selective.
Which topics provide the foundations for others? Which question types appear regularly? Where are the marks that can realistically be recovered? And which areas may need to receive less attention for now?
It's a more difficult plan to manage across several subjects, but it's also exactly the sort of information mock examinations are intended to reveal. A disappointing result should prompt a considered response, not become a final judgement about a student's ability.
Most academic gaps become much less intimidating once they're identified properly.
Slow algebra improves through focused practice. Evaluation becomes clearer when students understand what a supported judgement actually looks like. Writing code from a blank screen becomes less daunting after enough small programs have been completed independently.
And confidence generally follows evidence.
Completing a question without help, explaining a difficult topic clearly, or seeing timed assessment marks improve will usually do far more for a student's confidence than simply being told to believe in themselves.
Across eight years of tutoring and more than 100 students, I've seen improvements of one to three grades when lessons, homework and examination practice have been maintained consistently. I wouldn't present that as a guarantee. Starting points vary, the time available matters, and students still need to put in the work between lessons.
September won't determine a student's final A Level grades. What it does provide is an opportunity to identify the slow algebra, the vague essay paragraph, the unfinished code or the subject that's gradually slipping behind, while the solution is still likely to involve relatively manageable adjustments to their weekly routine.
That's why I believe it's worth taking the transition seriously from the beginning.
Nicolas B
Tutor
Eight years' experience – First-Class Maths graduate, Imperial MSc. Tailored plans and spaced practice; Rate negotiable.
Sherpa has hundreds of qualified and experienced UK tutors who are ready to help you achieve your goals. Search through our tutors and arrange a free 20 minute introduction through our industry-leading online classroom.
Find a TutorSimilar Articles
Ratios and Fractions. A Bar Model Guide for Key Stage 3 and GCSE Maths
Whether you're revising for an exam, teaching the topic, or supporting a child's learning at home, counters and bar models can help you
Krishan S
9th November