GCSE Mathematics and Numeracy
This double award is assessed by three written papers, one of them non-calculator, covering number, algebra, geometry and measures, statistics and probability, with Unit 1 given over to financial mathematics in real-world contexts. Literacy matters more than many expect: every paper sets questions in written context and awards two marks for communicating, organising and writing accurately, so learners must read problems closely and explain their working in words. The biggest thing Key Stage 3 should build is solving multi-step worded problems from real contexts, with every step explained and a written conclusion.
- Awarding body
- WJEC
- Level
- Level 1 and Level 2
- First taught
- September 2025
- Amount of literacy work
- Medium
- Amount of numeracy work
- High
- Specification
- Open the specification
How this qualification is assessed
- Unit 1: Financial Mathematics and Other Applications of Numeracy: Written examination, Higher Tier 1 hour 45 minutes (80 marks), Foundation Tier 1 hour 30 minutes (65 marks), 30%, calculator allowed
- Unit 2: Non-calculator: Written examination, Higher Tier 1 hour 45 minutes (80 marks), Foundation Tier 1 hour 30 minutes (65 marks), 30%, calculator not allowed
- Unit 3: Calculator-allowed: Written examination, Higher Tier 2 hours (90 marks), Foundation Tier 1 hour 45 minutes (75 marks), 40%, calculator allowed
Skills that use Interpreting data
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Interpreting data, averages and probability
Learners compare distributions using averages and spread, recognise misleading graphs and draw conclusions related back to the original problem, while Unit 2 holds all probability, from the 0 to 1 scale to tree diagrams, which the LNF covers only through interpreting data.
Numeracy: Interpreting data
Getting pupils ready
- Year 7
- Pupils compare the mean and range of two classes' times-table test scores and write one sentence saying which class did better and why.
- Year 8
- Pupils critique misleading newspaper graphs with cut-off axes, then run a dice experiment comparing relative frequency with the theoretical probability.
- Year 9
- Pupils compare two data sets using the median and interquartile range, then write a conclusion that answers the original question and names one limitation of the data.
Show the specification wording and the LNF statements
Where it is in the specification: Units 1 and 3, Section 4.2.21 to 4.2.23, page 44, and Unit 2, Sections 4.3 to 4.4, pages 45 to 47
“draw inferences and conclusions from summary measures and data representations, relate results back to the original problem”
Progression step 3
I can extract and interpret information from an increasing range of diagrams, timetables and graphs (including pie charts).
I can draw conclusions from data and recognise that some conclusions may be misleading or uncertain.
I can use mean to interpret a simple data set.
Progression step 4
I can interpret graphs that describe real-life situations, including those used in the media, recognising that some graphs may be misleading.
I can use mean, median, mode and range to compare data (continuous and discrete), and can choose the most appropriate average.
I can examine results critically, select and justify choice of statistics, recognising the limitations of any assumptions and their effect on the conclusions drawn.
Progression step 5
I can interpret graphs that describe real-life situations, including those used in the media, recognising that some graphs may be misleading.
I can interpret mathematical information; drawing inferences from graphs, diagrams and data, including discussion on limitations of data.
I can draw conclusions from data and recognise that some conclusions may be misleading or uncertain.
Good to know
- Unit 1 allows a calculator: 'A calculator will be allowed in this paper.' (page 5).
- Unit 2 is non-calculator: 'A calculator will not be allowed in this paper.' It holds all probability and much of the geometry (pages 5 and 10).
- Unit 3 allows a calculator and holds most of the data handling and measures content (pages 5 and 10).
- Two marks on each paper, at each tier, are for 'communicating, organising and writing accurately', six marks across the qualification, 'in addition to the marks allocated to the mathematics'. One mark is for communicating and organising, one for writing accurately, and the questions are clearly indicated on the paper (page 51).
- Writing accurately means learners 'show all their working', 'use correct mathematical form in their working' and 'use appropriate terminology, units, etc.' (page 51).
- Calculators must not offer language translators or hold stored dictionaries, formulas or text, and must not be borrowed from another candidate during the examination (page 52).
- Units 1 and 3 have a formula list at the start of the paper; Unit 2 has none. The Foundation Tier lists give only the area of a trapezium and the volume of a prism, so all other formulae must be recalled (pages 52 to 55).
- Metric to imperial equivalences 'will be given to learners' (Section 3.5.7, page 35), and compasses 'will be required' for some constructions and loci in Unit 3 (Section 3.2.2, page 30).
- There is no NEA. All assessment is by written examination, tiered Higher (grades A* to D) and Foundation (grades C to G), and learners may be entered at different tiers across units (pages 6 and 59).
Links with other qualifications
The finance, percentage, compound measure and statistics content overlaps heavily with Business, Geography, Social Studies and The Sciences, so agreeing shared methods for percentages, graphs and units with those departments will reinforce Key Stage 3 teaching.
Source: WJEC GCSE Mathematics and Numeracy (Double Award) Specification, for teaching from September 2025, Version 5, September 2025.