The first six weeks of A Level are not a gentle on-ramp. They’re the fastest part of the course, and almost nobody warns you.

Here’s the shape of them, and why the middle is where it bites.

Weeks one and two: it feels fine

The start is genuinely manageable, which is part of the problem.

New subject, new folder, an introductory topic pitched so the class can start together. If you’re doing Mathematics 9709, you’re into Pure Mathematics 1 immediately. If it’s Physics 9702 or Economics 9708, you’re on foundational content that overlaps enough with IGCSE to feel familiar.

You’ll notice the timetable looks emptier than IGCSE. Three subjects instead of eight or nine leaves gaps in the day that used to be lessons. Those gaps are not free time. They’re the independent study the course is built around, and nothing announces the change.

The other thing that feels good in week two is that you chose these subjects. Nine IGCSEs contained several you were made to take. Three A Levels are three you picked, and for a fortnight that makes the work feel lighter than it is. Enjoy it, and don’t read it as evidence about how the year will go.

Week three: the assumption arrives

This is the week the syllabus stops being polite.

Every Cambridge A Level names what it assumes you already know. Mathematics 9709 assumes IGCSE 0580 Extended or O Level 4024/4029, and specifically expects you to manipulate simple surds and know the shapes of graphs of the form y = kxⁿ. Physics 9702 assumes Physics or Co-ordinated Science to IGCSE standard. Economics 9708 assumes a mathematics course at that standard.

Around week three, a lesson uses one of those things without pausing. Not as the topic. As step two of a question about something else.

If that skill is fluent, you don’t notice it happen. If it’s merely familiar, you spend the lesson doing the assumed bit and miss the new bit. Both students look identical from the front of the room.

The teacher moves on in week four either way, because the content list has to be covered. 9709 Paper 1 alone is 75 marks across 10 to 12 structured questions, and all of it has to be taught before you sit it.

Week four: the first work comes back

Then something lands with a mark on it that doesn’t look like your IGCSE results.

The reason is mostly arithmetic. A Level mark schemes put most of the credit on what you do with content rather than on recalling it. Cambridge Economics 9708 weights knowledge and understanding at 35%, analysis at 40% and evaluation at 25%. In the same syllabus, knowledge is worth 47% of the multiple-choice papers but only 33% of the data response and essay papers.

So the longer the answer you’re asked to write, the less of the mark is available for the part you revised.

Worth knowing: this isn’t a new rule invented for Year 12. IGCSE Economics 0455 already ran 40% knowledge, 40% analysis and 20% evaluation. The balance moved by five percentage points. What changed is the length of the answer and the standard applied to it.

Week five: the workload becomes visible

By now the gaps in the timetable have filled themselves in, and you can feel where the hours went.

Cambridge designs a full A Level around about 360 guided learning hours, against roughly 130 for one IGCSE. Across a school year of about 36 teaching weeks, that’s around five hours a week per subject taught, or fifteen hours across three subjects, with your own work on top.

The totals across your whole timetable aren’t far off what nine IGCSEs demanded. The distribution is completely different, and that’s the bit that catches people. A wide, shallow syllabus can be revised hard in the fortnight before a test. Three deep ones can’t, because there’s nothing to revise towards yet.

Week six: the method problem shows up

At about this point most students discover their IGCSE method has stopped working.

That method was usually some version of: pay attention in class, do the homework that’s set, revise intensively before the assessment. It’s a good method. It’s built for breadth, short cycles and frequent checkpoints, and A Level supplies none of those.

What replaces it is unglamorous:

• Doing questions when nothing is due, because that’s the only way to find out what you can’t do.
• Writing full answers rather than checking whether you’d have got them right.
• Treating the assumed prior knowledge as something to rehearse until it’s automatic.

None of that is harder than what you did at IGCSE. It’s just differently shaped, and nobody hands it to you.

The switch is easier to make in week six than in week sixteen, for a plain reason. Right now the material behind you is small enough to go back over in an afternoon. Each week you keep the old method, the amount you’d need to revisit grows, and the same decision costs more.

There’s also a diagnostic worth running once. Take a topic you covered in week two and try a question on it now, closed book. If you can, the method is working. If you can’t, that’s not a memory problem, it’s a sign the material went in as something you followed rather than something you can use, and that’s the specific thing the next six weeks need to change.

If the first six weeks felt bad, that’s the normal experience

This is the part worth saying plainly.

Finding the start of A Level hard is not a signal that you picked the wrong subjects, or that your IGCSE grades were somehow fraudulent. It’s what the design predicts. Each subject carries close to three times the material it did before, the pace is set by a content list rather than by the class, and you’re being measured against a two-year standard in week five of it.

A low first mark is a measurement of distance from the end point. In week five, that distance is supposed to be large.

It helps to say what the mark is not. It isn’t a prediction, because the grade you’re being measured against doesn’t exist until two years of content sit behind you. It isn’t a comparison with your IGCSE results, because those measured a finished syllabus and this measures an unfinished one. And it isn’t evidence about ability, because everyone in the room is being measured the same way at the same distance, including the students who look untroubled.

The students who settle are rarely the ones who found it easy in September. They’re the ones who worked out which assumed skill they were missing and rehearsed it until it stopped taking up room. That’s a fixable, specific problem, and six weeks is early enough that fixing it costs a few hours rather than a year.

What to do next

Go back to the front of each syllabus and read Previous study and Prior knowledge. It’s about a page per subject on the Cambridge website. Mark the items that aren’t automatic yet, and give those twenty minutes a few times a week rather than rereading notes.

For the wider picture of why this window exists, the gap between IGCSE and A Levels covers the calendar and the workload shift. If you want the comparison itself, is A Level harder than IGCSE answers it with the syllabus numbers.

Six weeks in is late to discover a missing assumed skill, but it is not too late to close one. Pre-A Level Mathematics is built around the maths handover into 9709, and its topic notes and worked solutions are there whether you use them in August or in October.

Frequently asked questions

What should I expect in the first six weeks of A Level? +

A fast start on new content, an early assumption that prior knowledge is fluent, and a first piece of marked work that scores lower than your IGCSE grades did. The pace is set by the syllabus rather than the class, so teaching moves on whether or not everyone has caught up.

Why is my first A Level mark so much lower than my IGCSE grades? +

Because you are being marked against a two-year standard in week five of it. A Level mark schemes put most of the credit on analysis and evaluation rather than recall, and the answers are longer. A low first mark measures distance from the end point, not whether you belong on the course.

Is it normal to find the start of A Level hard? +

Yes, and the syllabus design predicts it. Cambridge builds an A Level around roughly 360 guided learning hours against about 130 for an IGCSE, so each subject moves nearly three times as much material. The method that worked across eight or nine IGCSEs does not transfer without adjustment.

How long does it take to adjust to A Level? +

Most of the adjustment is a change of method rather than of ability, and it takes about a term of deliberate practice. The specific habits are working before a deadline exists, writing full answers instead of checking answers, and treating assumed prior knowledge as something to rehearse rather than revisit.

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