The new GCSE Maths & Numeracy spec — what's changing
From September 2025, WJEC’s two GCSE maths qualifications (Mathematics and Mathematics – Numeracy) are being replaced by a single combined GCSE Mathematics and Numeracy (Double Award). This guide covers what's changing, which topics are gone, what's new, how the new tier and unit system works, and the key dates.
Wales is consolidating two GCSEs into one. Until summer 2025, students sat two separate GCSEs: Mathematics and Mathematics – Numeracy. From September 2025, both are being replaced by a single qualification called GCSE Mathematics and Numeracy (Double Award), which is worth two GCSEs on a student's transcript but is taught and assessed as one course.
One combined qualification instead of two.
Three units instead of two per qualification, weighted 30% · 30% · 40%.
Two tiers instead of three (Intermediate is gone).
You can sit different units at different tiers.
First taught September 2025, first sat summer 2026, first awarded November 2026.
Several Higher-tier topics from the old GCSE Mathematics are dropped; financial maths is promoted to its own dedicated paper.
Why the spec is changing
The new qualification was developed by WJEC in response to the Qualifications Wales Made-for-Wales criteria, which set requirements for any new GCSE approved for first teaching from September 2025. It's underpinned by the Curriculum for Wales framework and follows the principles of progression for the Mathematics and Numeracy Area of Learning and Experience.
The previous two-GCSE system originated from a 2012 review of Welsh qualifications which recommended having separate qualifications for applied numeracy and abstract mathematics. The 2025 spec moves back toward a unified qualification while keeping the financial-literacy and real-world focus that the Numeracy GCSE introduced.
It also brings the qualification closer in shape to GCSE Maths in England (single qualification, two tiers), though with a distinctively Welsh emphasis on financial literacy and real-world contexts.
Old spec vs new spec at a glance
2015 spec (last sat summer 2025)
2025 spec (first sat summer 2026)
Qualifications
2 separate GCSEs (Mathematics + Mathematics – Numeracy)
1 combined GCSE (Double Award, worth 2 GCSEs)
Units per student
4 (2 per GCSE)
3
Unit weighting
50% · 50%
30% · 30% · 40%
Unit split
By calculator vs non-calculator (both units test all topics)
By topic theme — financial / non-calc / calc-statistics
Tiers
3: Foundation (D–G), Intermediate (B–E), Higher (A*–C)
2: Foundation (C–G), Higher (A*–D)
Mixed-tier entry
No — same tier for both units
Yes — different tiers allowed across units
Higher exam time
3h 30m total
5h 30m total
Higher total marks
160 (80+80)
250 (80+80+90)
First award
November 2016
November 2026
Tiers — Foundation and Higher
The old three-tier system (Foundation, Intermediate, Higher) is replaced by two tiers:
Foundation Tier — grades C–G available.
Higher Tier — grades A*–D available.
The two tiers overlap at grade C and D. A student near the boundary can be entered for either tier without losing access to grade C.
New: mixed-tier entry
A student doesn't have to sit all three units at the same tier. They can be entered at Foundation for Unit 1 and Higher for Unit 3 if that fits their strengths. This is a meaningful flexibility win over the old spec, which required the same tier across both units.
Grades and UMS
Grades are awarded from Uniform Mark Scale (UMS) totals across the three units. If a student doesn't reach the minimum grade threshold on a Higher-tier paper, UMS is still awarded on a sliding scale down to 0 based on raw marks — not automatically set to 0.
Unit results remain valid for the duration of the specification, subject to the rules on resits and the terminal rule (see Section 5.1 of the spec).
There is no Single Award option. The Double Award (worth two GCSEs) is the only route. Students not ready for the Double Award will be steered toward an Entry Level qualification in mathematics and numeracy.
The three units in detail
The new spec distributes topics across units by theme, not just by calculator use. Each unit has a clear identity:
Unit 1 · 30% · Calculator allowed
Financial Mathematics and Other Applications of Numeracy
Purpose: introduce and develop learners' understanding of topics and concepts relating to finance, and to develop their financial literacy. Apply mathematical methods to personal and other real-world contexts, including those related to money and the workplace.
Question style: all questions are set in personal or other real-world contexts. Calculator is allowed throughout.
Personal financeMortgages & loansIncome taxExchange ratesAPR & AERPercentagesRatioCompound measuresReal-life graphsSampling in context
Purpose: explore mathematical topics and concepts that don't require a calculator. Contains all aspects of probability and has a significant focus on geometry.
Question style: mix of context-free and contextualised questions. No calculator allowed.
Single-event probabilityMulti-event probabilitySampling without replacementGeometry & angle factsCircle theoremsTransformationsSimilar & congruent shapesAlgebra (non-calc)Mental number skills
Purpose: topics best assessed with a calculator. Contains most data-handling and statistics and has a significant focus on measures.
Question style: mix of context-free and contextualised. Calculator allowed. This is the largest unit by both weighting and total marks.
Statistics & data handlingHistograms with unequal class widthsCumulative frequencyBox plotsScatter diagrams & correlationMeasures (incl. density, flow rates)Pythagoras & trigonometrySine & cosine rulesTrapezium ruleQuadratic & cubic equationsSequences (linear & quadratic)Real-life rates of change
Topics removed from the new spec
The following topics were in the old GCSE Mathematics (Higher tier) and are no longer assessed in the new Double Award:
Vectors — geometric vector arithmetic, parallel vectors, vector proofs in geometry. Completely absent from the new spec.
Function notation y = f(x) and transformations — y = f(x + a), y = kf(x), y = f(kx), y = f(x) + a. The function-transformation topic from old Higher Maths is gone.
Completing the square — not in the new spec. Quadratics are still solved via factorisation, formula, and graphical methods, but completing the square is not assessed.
Exponential graphs y = ax — sketching, recognising and transformations of exponential curves are not in the new spec.
Rationalising the denominator — e.g. simplifying 1 / (2 − √3). Excluded.
Geometric constructions with compass and straight edge — constructing triangles given side lengths, bisecting an angle from scratch, drawing perpendiculars by construction. Now done with ruler and protractor instead. Compasses are still required for drawing circles and for one type of locus problem (distance from a fixed point) and for drawing triangles when three side lengths are known.
The Intermediate tier itself — content has been redistributed between Foundation and Higher.
The Numeracy-vs-Maths content split — the old spec had an explicit two-column table marking which content was "Numeracy only" or "Maths only". In the new spec, all content is shared across the single qualification, with topic emphasis instead distributed by unit.
What this means in practice
A student moving from the old GCSE Mathematics Higher tier to the new Double Award Higher will find the paper feels lighter on abstract algebra and geometry. Vectors, function transformations and completing the square don't appear. Students who would have stayed on the Numeracy-only path under the old system lose nothing — only the harder Maths-only content has been trimmed.
Topics newly introduced or more prominent
The following topics either weren't in the old spec at all, or were on the old GCSE Mathematics (Higher only) and are now in the combined qualification:
Trapezium rule — estimating the area under a curve using strips. Not on the old WJEC spec, now in Unit 3 Higher (2.5.5).
Area under a graph in practical contexts — using the area under velocity-time graphs to find distance, and the area under other practical graphs. Unit 3 Higher (2.5.4).
"Identity" as a distinct term — the new spec explicitly asks learners to distinguish identities from equations, expressions and formulae (2.1.4). Wasn't a formal vocabulary item before.
Sampling without replacement — explicitly named, with calculating dependent-event probabilities. Unit 2 Higher (4.4.6).
Three independent events in one probability calculation — named explicitly as its own learning outcome (4.4.5).
Trigonometric function graphs — sketch, understand the behaviour of, and use graphs of trig functions (3.7.8). Was implicit at best on the old spec.
Density, population density, flow rates — as compound measures with full unit work (kg/m³, g/cm³, population per km², m³/hour, litres/second). Unit 3 Higher (3.5.9).
Pyramid surface area and volume — alongside sphere and cone, in standard 3D coverage.
Mortgages and loan products — explicit Unit 1 content. Students should compare mortgage products and determine required deposits. Monthly-payment formulas will be given to them rather than derived from scratch.
Infographics — interpreting structured visual data representations is now a named skill.
International tax contexts — questions may use non-UK tax rates and foreign currencies.
Sampling techniques (random, systematic, stratified) — was on old Higher Maths only, now part of the combined Higher.
Histograms with unequal class widths, box-and-whisker diagrams, cumulative frequency, interquartile range — all in Unit 3 Higher. These were on old Higher Maths only, now in the combined Higher.
Grams ↔ ounces conversion — added in version 2 of the spec, alongside the existing metric–Imperial conversions.
Net effect
The qualification has been pulled toward the applied / numeracy end of the old two-GCSE system, but the harder statistics, probability and trigonometry machinery has been preserved (and in some cases strengthened). Pure-abstract algebra and geometry have been trimmed.
Key dates and timeline
Date
Event
19 December 2024
Sample Assessment Materials (SAMs) published — one set of 6 papers (Foundation & Higher for each of Unit 1, 2, 3) with mark schemes and topic mapping grids.
September 2025
New spec teaching begins.
Summer 2026
Units 1 & 2 first sat.
November 2026
Unit 3 first sat. Legacy GCSE Mathematics still runs (resit). First Double Award awarded.
January 2027
Final legacy GCSE Mathematics – Numeracy resit window (moved from November 2026 to manage workload).
From 2027
New Foundation qualification in mathematics and numeracy (Entry Level + Level 1) launches as an alternative route for students not ready for the Double Award. Level 2 Additional Mathematics also from 2026.
Heads up — revision-resource gap
Students sitting the new spec in summer 2026 will have zero past papers in the new format. The SAMs are the only specimen material until then. Many revision topics will need to be sourced from old-spec papers (which mostly map across cleanly, minus the removed topics) or from English boards.
Resources and SAMs
WJEC has published the following official resources for the new spec:
Six SAM papers published 19 December 2024. Each PDF contains the question paper, mark scheme, and an assessment mapping grid showing every question tagged with its spec topic and the assessment objective (AO1 / AO2 / AO3) breakdown.
SAMs come with no grade boundaries
WJEC has stated that no grade boundaries or UMS conversions will be published for the SAMs. Real grade boundaries are only set once thousands of students have sat the live papers. Use the SAMs to practice questions, not to predict grades.
The Mathematics page on revise.wales
Past papers (SAMs for now), topic question packs and resources all live on the new combined Mathematics page:
Legacy 2015-spec papers are no longer hosted separately, since the new spec covers ~85% of the same mathematical content. Legacy papers from 2017–2025 remain accessible directly from the Physics & Maths Tutor archive for resit students.
Common questions
Why is there no Intermediate tier any more?
Qualifications Wales reviewed the options and decided to implement a two-tier structure for the new GCSE. Foundation and Higher overlap at grade C, giving boundary students more flexibility than the old three-tier system did.
Is there a Single Award option?
No. The Double Award is the only GCSE Mathematics route in Wales from 2025. Students not ready for the Double Award are steered toward an Entry Level qualification or, from 2027, the new Foundation qualification covering Entry Level and Level 1.
Can a student sit Foundation for one unit and Higher for another?
Yes. The new spec explicitly allows entry at different tiers across units. This is genuinely new compared to the old spec, which forced a single tier per qualification.
How do grades work across mixed-tier entries?
Grades are calculated from UMS (Uniform Mark Scale) totals across the three units. The spec includes example scenarios in Section 5.3. Crucially, if a student doesn't meet the minimum grade threshold on a Higher-tier unit, UMS is still awarded on a sliding scale down to 0, not automatically set to 0.
When can I sit the new exam for the first time?
Units 1 and 2 are first available summer 2026. Unit 3 is first available November 2026. The first time a full Double Award can be awarded is November 2026.
What happens to the old GCSE Mathematics and Mathematics – Numeracy?
Last sat summer 2025 for new entrants. November 2026 is a resit-only window for legacy Mathematics. The final legacy Maths – Numeracy resit window has been moved to January 2027 to manage examiner workload.
How long do unit results stay valid?
Unit results are valid for the duration of the specification, subject to the rules on resits and the terminal rule. See Section 5.1 of the specification for the formal rules.
Will there be a textbook?
No. WJEC has confirmed that no textbook will be produced for the new spec. Instead, they're publishing Knowledge Organisers and Blended Learning materials. This creates a real revision-resource gap, which is part of why a question-pack series sourced from legacy papers is useful.
Are compasses still needed?
Yes, but for fewer things. Geometric constructions (bisecting angles, constructing triangles by SSS) are no longer assessed. Compasses are still required for drawing circles and part-circles, drawing triangles given three side lengths, and one type of locus (distance from a fixed point). Other constructions are now done with ruler and protractor.
Will questions on mortgages get harder than the old spec?
Mortgages are explicit Unit 1 content. Students should be able to compare mortgage products and determine deposit amounts. For monthly-payment calculations and remaining-balance work, WJEC has confirmed that all necessary formulas will be given to them within the question rather than expected to be memorised or derived.
Could questions use foreign currencies and tax rates?
Yes. Tax questions in assessments will use pounds (£) alongside foreign currencies, and tax rates may not match current UK rates. Examples from outside the UK could be used to ensure varied and valid assessment.
What's an "infographic" in this context?
An infographic is a structured, visually engaging representation of information that combines data and design. Learners must be able to interpret familiar and unfamiliar charts or graphs and scan across multiple visuals to find what they need. This is a new named skill in Unit 1.
How is the median estimated from grouped frequency data?
The Guidance for Teaching gives a worked example: identify the group containing the median, then proportionally interpolate within that group. Using the n/2 value (rather than (n+1)/2) is acceptable in examination questions even though strictly less accurate — the spec is estimating, not finding exactly.
Will my old AS/A-level Mathematics options still be supported by the new spec?
Yes. The Double Award explicitly says it "provides a suitable foundation for the study of Mathematics at either AS or A level." However, students intending to go on to A-level Maths may want to do extra reading on vectors, function transformations and completing the square — topics that the new spec drops but which A-level Maths re-introduces.
Will FE colleges run the new spec as a one-year resit?
WJEC has confirmed there are currently no plans to provide specific guidance for delivering the new qualification in one year as a resit. Separate "Preparing to Teach" professional learning for FE will be arranged before the first cohort enters post-16 study in September 2027.