Technique Masterclasses

Mechanics 1

Question Selector Guide

Provenance: written 2026-09-29. Existing-record check before writing: research/veridian/WME01-verified-facts.md (read in full — §2 assessment structure, §3 mark-scheme conventions, §4 per-topic content), content/veridian/curriculum/wme01/paper-anatomy.ts (read in full), and every technique-hub file already in this folder — forge-exam-technique-guide.md, forge-exam-day-protocol-extended.md, forge-forty-eight-hour-checklist.md, forge-battle-card.md, forge-error-pattern-tracker.md, forge-mock-paper-protocol.md, signal-frequency-and-boundaries.md, the nine signal-topic-brief-*.md files and nine codex-deep-dive-*.md files, and codex-formula-and-method-bank.md — read or grepped in full to confirm this document does not restate any of them, and content/veridian/question-bank/wme01.ts (checked — no triage/ordering content exists there). content/veridian/types.ts's MarkLine comment and lib/veridian/examForm.ts's WMA11 entry were checked to get the follow-through ("ft") convention's real scope right (it is a mark-scheme-documented convention on Pearson IAL Maths papers generally, but not every paper's own mark schemes use it the same way — WMA11's own entry in this course states "'M1 ft' is not a real convention" for that paper specifically, so this document only claims what WME01's own mark schemes actually show, below, not the generic convention). New primary-source work done for this document, not reused from any existing file: two WME01 examiner reports were fetched fresh from qualifications.pearson.com/content/dam/pdf/International-Advanced-Level/Mathematics/2018/Exam-materials/ and converted with pdftotext -layout — wme01-01-pef-20240815.pdf (Publications Code WME01_01_2406_ER, Summer 2024, HTTP 200, confirmed a genuine 8-page PDF) and wme01-01-pef-20250306.pdf (Publications Code WME01_01_2501_ER, January 2025, HTTP 200) — and both were read in full, including their "General" overview sections, which no existing WME01 document in this course had extracted before (the facts bank and the FORGE guide both mined these same two PDFs for mark-coding, trap and per-question content, but neither quotes either report's General section). Two older reports (WME01_01_pef_20200305.pdf, WME01_01_pef_20220303.pdf) were also attempted from the same path and both now 404 under Pearson's current file structure — a real, current access limitation, not a gap in this pass's effort; it is recorded in §7 rather than silently dropped. This document's job, distinct from everything already in this folder: real, dated examiner-report evidence about time management specifically, and the practical triage consequence of that evidence for a paper where every question is compulsory.

WME01 — Question Selector Guide

Pearson Edexcel IAL Mechanics 1 (WME01/01) — triage under time pressure

1. Read this first: there is nothing to select at the question level

WME01's own assessment information is unambiguous, and this course has already established it in two places (research/veridian/WME01-verified-facts.md §2; paper-anatomy.ts's own flashcard, "Does WME01 give a choice of which questions to answer? No."): 75 marks, 90 minutes, students must answer all questions — no Section A/B choice, no "any two of the following," nothing to legally skip. So a "question selector" for this paper cannot mean what it would mean on a paper with essay choice. The only two real selection decisions left are: what order to work the compulsory questions in, and — within any one question — which of its lettered parts to commit time to when a part stalls. This document is about those two decisions only, built from real, dated evidence, and it stops where that evidence stops.

2. New evidence: what two real series' examiner reports actually say about time, read in full for this pass

Neither of the following two findings appears anywhere else in this course's WME01 record — both come from reading each report's full General section and every per-question paragraph specifically for time-management language, not from the mark-coding or trap-taxonomy content the facts bank and FORGE guide already extracted from these same two PDFs.

3. What this means: watch for a stuck question anywhere on the paper, not only at the back

The existing forge-exam-day-protocol-extended.md (§4) and signal-topic-brief-connected-particles-pulleys-and-lifts.md already establish, correctly, that the final question is consistently the heaviest and — in both fully mark-mapped series — the one named as most demanding by mark count and by the examiners' own "modal mark of 0" comment for January 2025. Nothing here contradicts that. What §2 above adds is a real, sourced correction to a natural but unproven assumption: that the only place a candidate can get badly stuck is the final question, because that's where the clock is thinnest. June 2024's own General section shows a mid-paper question — a 6-mark connected-particles question appearing third, not eighth — was the one the examiners themselves singled out that series as causing the most problems, ahead of even the (heavier, later) Q7. A candidate rationing attention only for "the end of the paper" is planning against a pattern that didn't hold in at least one real series.

The practical triage consequence: the real risk is "whichever question doesn't click," not "whichever question is printed last." If a question's shape is unfamiliar and several minutes produce no working you'd want marked (the two-tension connected-particles family — no pulley, two separate strings, two different tensions — is the real, named example from June 2024's own worst-performing question), that is a real, evidenced trigger to move on rather than a signal you are simply slow. No source reviewed for this course states, one way or the other, whether a candidate may legally answer WME01's printed questions out of their printed order — forge-exam-day-protocol-extended.md §3 already flags this exact gap honestly, and this document does not re-litigate it or invent an answer where none exists. Where a candidate does choose to come back to a stuck question later in the sitting, for that reason, it is general test-taking judgement, not a WME01-specific instruction either document can cite.

4. Is it actually the clock, though? Both series' own verdict, read in full

June 2024's Q8(d) — the final part of that series' final, heaviest question, exactly the part a candidate under pressure would expect to sacrifice — carries the single most direct, quoted verdict on this question in either report: "time constraints had a limited part to play", with the examiners noting a few responses stopped mid-process, "but these cases were rare" — the more prevalent problem, in their own account, was not knowing how to handle the two-stage motion once a particle had already landed, not the clock. This matters for how a candidate should read their own stuck moment on this exact question family: if you reach the final part with time still on the clock and it isn't coming together, the evidence from this series says the odds favour a genuine mechanics gap over a timing one — worth a real, unhurried attempt rather than an assumption that "there's no time for this anyway."

That doesn't mean time pressure is never real on this paper — §2's hedge in both series' General sections keeps the door open, honestly, rather than closing it. It means a candidate reaching the back of the paper with minutes still available shouldn't write the final question off as unreachable purely because it's printed last and looks hard; both series' own examiners were more often finding a mechanics gap than a stopwatch when they looked closely.

5. The real evidence for "don't freeze on an early part" — three genuine ways a later part can still be gettable

This is the single most actionable, evidenced finding in this document, and none of it is invented inference — every line below is a real mark-scheme wording or a real examiner-report sentence.

A later part can be marked from your own earlier value, right or wrong. WME01's own mark schemes write some criteria around the candidate's own prior answer rather than the printed correct one — the mark-scheme abbreviation for this is ft (follow-through), and the general marking guidance already sourced in this course's own facts bank (§3) defines it plainly: "ft – follow through." A real, verified instance: January 2023 Q1(c) reads 20 = a × their T oe for the method mark, then awards the accuracy mark explicitly as A1 ft — meaning the acceleration mark is earned using the candidate's own value of T from part (b), wrong or right, not the textbook-correct one. January 2025 Q1(b)'s own method-mark wording does the same thing in a different topic: "their i and j components of their resultant force" — the ratio equation is built and marked from whatever resultant the candidate actually found in part (a), not a value pulled from the mark scheme's own working.

Some parts are answerable independently of an earlier part's outcome, not merely via follow-through. January 2025's own examiner report on Q6(c) — a "does the box remain at rest" comparison, immediately after a "show that" part (b) — states plainly: "A few candidates did well here despite scoring zero in part (b)". Part (c)'s real, credit-worthy route (comparing limiting friction directly against the weight component down the plane) does not require part (b)'s printed result to already be sitting on the page — it is a fresh, self-contained comparison, and the report confirms candidates who got nothing in part (b) still found marks in part (c). This is stronger than a follow-through mark: it is direct, quoted evidence that an earlier part going wrong, or not being finished, does not automatically zero out what comes after it on the same page.

Working a later part can hand you back an earlier one. June 2024 Q7 gives a genuine, examiner-observed example of self-correction in real scripts: after computing part (c) (subtracting a given vector from their own part (b) answer), the report notes some candidates "used this as an opportunity to correct" one or both of their earlier answers to parts (a) and (b), having spotted from part (c)'s own structure that something upstream didn't fit. Pressing on through a question you're unsure about isn't just a way to bank the later part's marks independently of the earlier one — on this real question, it was how some candidates caught and fixed their own mistake.

The combined, evidenced rule: on a multi-part WME01 question, an early part feeling shaky, being left incomplete, or coming out wrong is not, by itself, a real reason to abandon the rest of that question. Real mark schemes and real scripts, across three separate questions in two separate series, show later parts surviving an earlier miss in three distinct ways — credited from your own (possibly wrong) value, credited independently of it, or used to go back and fix it.

6. A grounded triage procedure

Nothing below is a new invention; each line is either a direct consequence of §2–§5 above or a cross-reference to a rule this folder's other documents already establish and source in full, cited here rather than repeated.

  1. Check every question's own printed mark tariff as you reach it, not a flat 72-seconds-a-mark average — already fully sourced with a two-series mark-by-mark table in forge-exam-technique-guide.md §1.
  2. Attempt every lettered part of every question, in the order printed, at least once, before spending extra time perfecting any single part. §5 above is the direct, this-paper-specific reason: a shaky or wrong earlier part does not reliably zero out what comes after it.
  3. If a question's shape is unfamiliar and several minutes of genuine attempt produce nothing you'd want marked, treat that as a real, evidenced signal, not a personal failing — §2–§3 above show this happened, examiner-confirmed, on a mid-paper question in a real series, not only at the back of the paper.
  4. Do not assume "it's printed last, so there's no time for it anyway." §4 above shows the final question's own final part was, in a real series, judged mostly a difficulty problem, not a timing one — a genuine, unhurried attempt at the back of the paper is frequently still worth the marks.
  5. Whether you may answer the compulsory questions out of their printed order is a real, open gap in this course's record — not resolved here or in forge-exam-day-protocol-extended.md §3, which flags the same gap. Where a candidate reorders their own attempts for the reasons in §3, that is general test-taking judgement, not a sourced WME01 instruction.
  6. On the specific final-question family this paper has repeatedly set (connected particles/pulley into free motion once a particle lands or a string goes slack), budget a genuine, unhurried pass rather than a rushed one — already the subject of a two-series, mark-mapped finding in forge-exam-day-protocol-extended.md §4 and signal-topic-brief-connected-particles-pulleys-and-lifts.md, not repeated in full here.

7. Flagged gaps — what this document does not claim

Sources