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HKDSE Mathematics Paper 1 Drill Guide: Section A(1) to Section B, Order and Pacing
TUTORZONE EXAM DRILL GUIDE · HKDSE MATHEMATICS PAPER 1
HKDSE Mathematics Paper 1 is the long-question paper, running from Section A(1) through Section A(2) to Section B with rising difficulty and marks. The spread is not made on the hardest question but on whether the first two sections are written with full working and units. Method only here.
How is HKDSE Mathematics Paper 1 assessed, and what does each part carry?
Section A(1): 8-11 elementary questions; foundation topics of the Compulsory Part an (35 marks); Section A(2): 4-7 harder questions; Compulsory Part plus foundation and non-foundati (35 marks); Section B: 4-7 of the hardest questions; Compulsory Part plus foundation and non- (35 marks)
Assessment at a glance (2027)
| Component | Content | Weighting | Duration |
|---|---|---|---|
| Section A(1) | 8-11 elementary questions; foundation topics of the Compulsory Part and S1-S3 | 35 | 35-40 min |
| Section A(2) | 4-7 harder questions; Compulsory Part plus foundation and non-foundation S1-S3 | 35 | 45-50 min |
| Section B | 4-7 of the hardest questions; Compulsory Part plus foundation and non-foundation S1-S3 | 35 | 40-45 min |
Cut the 135 minutes as 40 / 48 / 47 (A1 / A2 / B) plus 8-10 minutes to check – closer to reality than an even split, since A(1) is fastest and B needs the buffer.
What each paper is actually testing
| Paper | Drill focus | How marks are lost |
|---|---|---|
| Section A(1) | Take what you can at once, skip and return | Section A(1) answered with the result only; units and significant figures dropped; the denominator-not-zero condition omitted when simplifying |
| Section A(2) | Show every step; method marks are the cheap marks | Section A(2) geometry answered with a conclusion but no reason; “hence” used as proof; no construction line drawn before calculating |
| Section B | Start with your two strongest; stop a hard question once the key steps are down | Section B defended question by question, leaving the last two blank; answering in order without reading the whole paper first, so the time split collapses |
What is each HKDSE Mathematics Paper 1 paper really testing, and what should you drill?
Section A(1): Take what you can at once, skip and return; Section A(2): Show every step; method marks are the cheap marks; Section B: Start with your two strongest; stop a hard question once the key steps are down
Drill order: by topic, then by year, then the mark scheme
| Step | What you do | Why |
|---|---|---|
| 1. By topic | Work through each topic, starting with the paper that allows least help (no calculator / closed book) | Exposes what is genuinely not understood |
| 2. By year | Whole papers to time, one or two a week | Trains pace, stamina and question selection |
| 3. Mark scheme | Go through the marking scheme question by question and log the scoring steps you missed | Most lost marks are written wrong, not thought wrong |
Should drilling go by topic first or by year?
By topic first, then whole papers by year, then the mark scheme. The first third of the time goes topic by topic (8-10 years of the same topic back to back), the middle switches to timed whole papers, and the last fortnight only redoes the recurring errors from your log.
A 12-week drilling timetable
| Week | Phase | What to do |
|---|---|---|
| Weeks 1-3 | By topic: foundation | Topic by topic, starting with the easiest marks, building habits and recall |
| Weeks 4-6 | By topic: core | 8-10 years of the same topic back to back, errors classified by topic |
| Weeks 7-8 | By topic: advanced and electives | Elective and higher-order topics, now under time pressure |
| Weeks 9-10 | By year: timed papers | One full paper a week, timed, no reference materials |
| Week 11 | Mark scheme work | Question by question against the marking scheme; list the scoring steps you omitted |
| Week 12 | Plug holes and simulate | Only the recurring errors from your log, then one full exam simulation |
Subject-specific weighting for this timetable: Twelve weeks in four blocks: Section A(1) accuracy, Section A(2) working, Section B unpacking, then timed whole papers. Weeks 1-3 drill A(1) computation at three minutes a question and repeat any missed type five times. Weeks 4-6 take A(2) geometry and statistics with reasons written every time. Weeks 7-9 take Section B, starting each question with three lines: given, required, formula. Weeks 10-12 are timed papers, reviewed for the time split rather than the score.
Use it properly: this is not a checklist to finish. Every week must keep time for redoing errors, or from week 9 you will be repeating the same batch.
Pacing
| Paper | Time | Suggested split |
|---|---|---|
| Section A(1) | 35-40 min | 35-40 min (target full marks) |
| Section A(2) | 45-50 min | 45-50 min (aim 28+) |
| Section B | 40-45 min | 40-45 min plus 8-10 min checking |
How should the time be split inside each HKDSE Mathematics Paper 1 paper?
Section A(1): 35-40 min (target full marks); Section A(2): 45-50 min (aim 28+); Section B: 40-45 min plus 8-10 min checking
The drilling mistakes that cost the most marks
| Mistake | What it looks like | What actually happens | Instead |
|---|---|---|---|
| Answers only | Stopping when the number is right | Method marks lost, one to two levels lower | Write every step, including the rule and its condition |
| Fighting one Section B question | Fifteen minutes on one item | No time left to check or return | Stop at the key steps, flag it and move on |
| Units and accuracy | Bare numbers | Paper 1 marks units and accuracy | Check units and significant figures at the end |
The error log and the mark scheme
Four columns: steps (which line was missing and where the scheme pays for it), reason (was a reason written for every geometry or proof step), units and accuracy, and time (minutes spent against minutes planned).
How many years should you drill?
One Paper 1 per year, so ten years is the working standard: the last five as full timed papers, ten years for horizontal topic drilling. The paper was adjusted from 2024, so older years are best used topic by topic.
How many years of past papers is enough?
One Paper 1 per year, so ten years is the working standard: the last five as full timed papers, ten years for horizontal topic drilling. The paper was adjusted from 2024, so older years are best used topic by topic.
Frequently asked questions
Is this page a mock paper or a drilling guide?
This is the HKDSE Mathematics Paper 1 drilling guide: assessment structure, drill order, a 12-week timetable, pacing, common mark losses and the error-log method. For questions with answers, use the HKDSE Mathematics Paper 1 mock papers linked under Related.
By topic or by year first?
By topic. Eight to ten years of the same topic back to back is what exposes repeating errors; going straight to whole papers just repeats the same batch under time pressure.
How should the error log be written?
Do not copy out questions. Per error record four things: question reference, which step failed (concept, wording, calculation), what the mark scheme requires, and the correct action next time.
Are formulas given in Paper 1?
Some are printed in Section B, but simplification, factorisation, percentages and ratios in Section A are assumed knowledge.
What if I cannot finish?
Take the questions you are sure of across the whole paper first, then return to the long ones. Practise skipping with a note of when to come back.
Official references
| Resource | What to use it for |
|---|---|
| HKEAA 2027 HKDSE Mathematics Assessment Framework | Confirm Paper 1’s 65%, 2 h 15 min, 105 marks and the three 35-mark parts |
| https://www.tutorzone.com.hk/en-dse-maths-paper-1-lq-drill-guide/ | Paper 1 drilling guide: 135-minute pacing and method-mark writing |
| https://www.tutorzone.com.hk/en-dse-maths-paper-2-mc-drill-guide/ | Paper 2 (MC) drilling guide |
Related: HKDSE Mathematics Paper 1 original drilling mock with answers · practice area
Next step: find a tutor / register as a tutor
After drilling, the hard part is telling a conceptual error from a writing error. Tell us the year group, the school and your available times, and TutorZone will match you with a tutor who knows the HKEAA assessment requirements.
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