Eduqas GCSE Mathematics (C300): complete guide to Number, Algebra, Ratio, Geometry, Probability and Statistics and the exams
A complete guide to WJEC Eduqas GCSE (9-1) Mathematics (specification C300) for England. Covers the six content areas (Number, Algebra, Ratio proportion and rates of change, Geometry and measures, Probability, Statistics), how the two written components work, the Foundation and Higher tiers, the formulae list, the assessment objectives, and how to study each area for top grades.
WJEC Eduqas GCSE Mathematics (specification C300) is a single linear course assessed by two written components sat at the end of the course, available to schools and colleges in England. There is no coursework. This page is the index: below is a map of the six content areas, the tier structure, the exam components, the formulae list, the assessment objectives, and how to study each area, with a direct link to every dot point.
The six content areas
The specification is organised into six areas. Number and Algebra are the foundation that everything else builds on.
- Number
- The structure of the number system and calculation, fractions, decimals and percentages, standard form and indices, surds, rounding, estimation and bounds, and factors, multiples and primes.
- Algebra
- Algebraic manipulation, solving linear and simultaneous equations, quadratic equations, sequences, straight line graphs, inequalities and other graphs and functions.
- Ratio, proportion and rates of change
- Ratio and scale, direct and inverse proportion, percentage change and interest, compound measures, and growth, decay and rates of change.
- Geometry and measures
- Angles and polygons, Pythagoras and trigonometry, area and volume, circles and circle theorems, transformations, vectors, and constructions and loci.
- Probability
- The probability scale and combined events, tree diagrams, Venn diagrams and set notation, and relative frequency and expected outcomes.
- Statistics
- Sampling and types of data, averages and spread, statistical charts and graphs, and scatter graphs and correlation.
Foundation and Higher tiers
The qualification is tiered. You sit both components at one tier.
- Foundation tier targets grades 1 to 5 and covers core number, algebra, ratio, geometry, probability and statistics.
- Higher tier targets grades 4 to 9 and adds harder material such as surds, algebraic fractions, the quadratic formula, completing the square, the sine and cosine rules, vectors and vector geometry, circle theorems, histograms and more demanding reasoning.
The tier you enter caps the maximum grade available, so the choice of tier is a real decision: Foundation secures the core grades up to 5, while Higher reaches grades 6 to 9 but starts its grade range at 4.
Exam structure
Eduqas GCSE Mathematics is assessed by two written components, both sat at the end of the course. Each component is 120 marks and 2 hours 15 minutes, and each is worth 50 percent of the grade, for a total of 240 marks.
- Component 1 (Foundation C300U10-1, Higher C300UA0-1) - non-calculator. 2 hours 15 minutes, 120 marks, 50 percent.
- Component 2 (Foundation C300U20-1, Higher C300UB0-1) - calculator allowed. 2 hours 15 minutes, 120 marks, 50 percent.
Each component mixes short, structured and unstructured questions, and either component can assess content from across the whole specification, so you cannot revise component by component.
Assessment objectives
The same three assessment objectives apply across the full qualification, but their weightings depend on the tier you enter.
| Assessment objective | Foundation | Higher |
|---|---|---|
| AO1 - use and apply standard techniques | 50 percent | 40 percent |
| AO2 - reason, interpret and communicate mathematically | 25 percent | 30 percent |
| AO3 - solve problems within mathematics and in other contexts | 25 percent | 30 percent |
So at Foundation half the marks reward reasoning and problem solving (AO2 plus AO3), rising to 60 percent at Higher, where AO1 falls to 40 percent. Either way Eduqas rewards clear method, worded justification and multi-step problem solving heavily, and AO1 still depends on fluent, accurate technique.
The formulae list
Eduqas prints a formulae list at the front of each component. The same list is supplied at both tiers, although several entries are only needed at Higher, such as the sine rule, the cosine rule and the area of a triangle as . Some formulae are still expected to be recalled, including the area of a circle , Pythagoras' theorem and the trigonometric ratios. You still need to know when to use each formula, so practise selecting the right tool rather than relying on the list alone.
How to study Eduqas Mathematics
Mathematics rewards fluent technique, clear working and accurate arithmetic.
- Work from the specification statements. Each statement is a checklist; questions are written from them.
- Master Number and Algebra first. They underpin every area, so weak algebra leaks marks everywhere.
- Show full working. Method marks are secure even when a final answer slips, so set out every step, and remember AO2 and AO3 reward reasoning.
- Practise non-calculator skills. Component 1 has no calculator, so drill mental and written methods separately.
- Finish with timed past papers. Sit full papers across both components to build speed and exam stamina.
Syllabus, dot point by dot point
Each area has specification-statement-level answer pages with worked exam questions and cross-links, plus an overview guide and quiz. Browse the full set at /gcse-eduqas/mathematics/syllabus.
Number
- The structure of the number system and calculation
- Fractions, decimals and percentages
- Standard form and indices
- Surds
- Rounding, estimation and bounds
- Factors, multiples and primes
Algebra
- Algebraic manipulation
- Solving linear equations
- Quadratic equations
- Simultaneous equations
- Sequences
- Straight line graphs
- Inequalities and other graphs
Ratio, proportion and rates of change
- Ratio and scale
- Direct and inverse proportion
- Percentage change and interest
- Compound measures
- Growth, decay and rates of change
Geometry and measures
- Angles and polygons
- Pythagoras and trigonometry
- Area and volume
- Circles and circle theorems
- Transformations
- Vectors
- Constructions and loci
Probability
- Probability basics
- Tree diagrams
- Venn diagrams and set notation
- Relative frequency and expected outcomes
Statistics
For the official specification
Eduqas publishes the full specification (C300), past papers and mark schemes at eduqas.co.uk. Always revise from the current specification and Eduqas's own past papers, because question style is board-specific.
Maths guides
In-depth written guides with paired practice quizzes.
- Eduqas GCSE Mathematics Algebra: a complete overview of manipulation, equations, sequences, graphs and inequalities
A deep-dive Eduqas GCSE Mathematics guide to the Algebra content. Covers algebraic manipulation, solving linear, quadratic and simultaneous equations, sequences, straight line graphs, inequalities and other graphs, with the methods and exam patterns Eduqas repeats across Foundation and Higher tier.
16 min readRead β - Eduqas GCSE Mathematics Geometry and measures: a complete overview of angles, trigonometry, area and volume, circle theorems, transformations and vectors
A deep-dive Eduqas GCSE Mathematics guide to the Geometry and measures content. Covers angles and polygons, Pythagoras and trigonometry, area and volume, circles and circle theorems, transformations, vectors, and constructions and loci, with the methods and exam patterns Eduqas repeats across Foundation and Higher tier.
16 min readRead β - Eduqas GCSE Mathematics Number: a complete overview of calculation, fractions, percentages, indices, standard form, surds and bounds
A deep-dive Eduqas GCSE Mathematics guide to the Number content. Covers the structure of the number system and calculation, factors multiples and primes, fractions decimals and percentages, standard form and indices, surds and rounding estimation and bounds, with the methods and exam patterns Eduqas repeats across Foundation and Higher tier.
15 min readRead β - Eduqas GCSE Mathematics Probability: a complete overview of the probability scale, tree diagrams, Venn diagrams and expected outcomes
A deep-dive Eduqas GCSE Mathematics guide to the Probability content. Covers the probability scale and single events, tree diagrams for combined events, Venn diagrams and set notation, and relative frequency and expected outcomes, with the methods and exam patterns Eduqas repeats across Foundation and Higher tier.
15 min readRead β - Eduqas GCSE Mathematics Ratio, proportion and rates of change: a complete overview of ratio, proportion, percentages, compound measures and growth
A deep-dive Eduqas GCSE Mathematics guide to the Ratio, proportion and rates of change content. Covers ratio and scale, direct and inverse proportion, percentage change and interest, compound measures, and growth, decay and rates of change, with the methods and exam patterns Eduqas repeats across Foundation and Higher tier.
15 min readRead β - Eduqas GCSE Mathematics Statistics: a complete overview of sampling, averages, statistical charts and scatter graphs
A deep-dive Eduqas GCSE Mathematics guide to the Statistics content. Covers sampling and types of data, averages and spread, statistical charts and graphs, and scatter graphs and correlation, with the methods and exam patterns Eduqas repeats across Foundation and Higher tier.
15 min readRead β
Maths practice quizzes
Multiple-choice drills with worked answer explanations. Your scores stay on this device.
- Eduqas GCSE Mathematics Algebra overview quiz14 questionsStart β
- Eduqas GCSE Mathematics Geometry and measures overview quiz13 questionsStart β
- Eduqas GCSE Mathematics Number overview quiz15 questionsStart β
- Eduqas GCSE Mathematics Probability overview quiz12 questionsStart β
- Eduqas GCSE Mathematics Ratio, proportion and rates of change overview quiz13 questionsStart β
- Eduqas GCSE Mathematics Statistics overview quiz12 questionsStart β
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