How to Score A* in IGCSE Maths (2026 Complete Strategy)
The A* difference is not talent—it’s habits
Most students who aim for A* already “know the topics.”
They lose marks because of:
- careless mistakes under time pressure
- skipping steps (losing method marks)
- weak algebra foundations
- not recognising repeated question patterns
- not practising enough mixed, exam-style questions
This guide gives a clear plan to fix that.
1) Know Your Paper: Core vs Extended (and Your Exam Board)
Before you plan your prep, confirm:
Core vs Extended
- Core: strong foundation, steady improvement
- Extended: higher difficulty and higher grade potential (where A* is targeted)
Cambridge vs Edexcel
- Cambridge (CAIE): very pattern-based, method marks matter
- Edexcel: different question style and topic emphasis
Action: Use the correct past papers for your board—every week.
2) The A* Rule: Method Marks Are Your Best Friend
In IGCSE Maths, you can lose a lot of marks even if your final answer is close—because you didn’t show the method.To score A*:
- write steps clearly
- use correct notation
- show substitutions in formulas
- don’t skip working even if you “can do it in your head”
Simple habit: If a question is worth 4–6 marks, your solution should show multiple clear steps.
3) Master the High-Frequency Topics First
A* students don’t revise randomly. They prioritise the topics that appear again and again:
- Algebra (equations, inequalities, factorising, simultaneous equations)
- Graphs and functions
- Geometry and mensuration
- Trigonometry (including bearings)
- Ratio, proportion, percentages
- Probability
- Statistics (mean/median, cumulative frequency basics)
- Number (standard form, indices)
Action: Create a “Top Topics” checklist and tick it off with timed practice, not just notes.
4) Use Past Papers the Right Way (The A* Loop)
Many students “solve papers” but don’t improve because they don’t correct properly.Use this 5-step loop:
- Timed attempt (real exam conditions)
- Strict marking (use mark scheme)
- Error log (write the mistake type)
- Targeted re-practice (10–20 similar questions)
- Re-test the weak area after 3–5 days
This loop turns practice into score improvement.
5) Build an Error Log (This Alone Can Add 10–20 Marks)
Your error log should include:
- the topic (e.g., trig, algebra)
- the mistake type (concept / method / careless)
- the correct method
- a “rule” to prevent it next time
Common A* error categories:
- sign errors
- wrong substitution
- rounding too early
- forgetting units
- skipping steps
- misreading the question
Action: Review your error log before every mock/paper attempt.
6) Reduce Careless Mistakes With a Checking Routine
A* students don’t just finish—they check smartly.Use a 3-minute routine:
- re-check the first and last questions (most rushed)
- verify negative signs and brackets
- check units and rounding instructions
- substitute your answer back (where possible)
7) Time Management Strategy (So You Don’t Panic)
A simple approach:
- don’t get stuck early
- if a question is taking too long, move on and return later
- aim to finish with time to check
Tip: Practise timed sections weekly, not only full papers.
8) A 6-Week A* Study Plan (Practical and Realistic)
Week 1: Diagnose + rebuild weak foundations
- do a diagnostic paper or mixed test
- identify top 3 weak topics
- start error log
Week 2–3: Topic mastery + exam-style practice
- 3–4 sessions/week of targeted questions
- 1 timed past-paper section/week
- correct using mark scheme
Week 4–5: Mixed practice + full paper training
- 2 full papers/week (timed)
- strict marking + error log
- re-practise weak question types
Week 6: Final polish
- focus on repeated mistakes
- practise speed sets
- do 2–3 final papers with full checking routine
9) FAQs
How many past papers should I do to get A*?
Quality matters more than quantity. Many students improve with 2 timed papers per week closer to exams, plus targeted practice based on mistakes.
What if I’m stuck at a B or C right now?
You can still improve a lot by rebuilding algebra basics, practising exam-style questions weekly, and using an error log consistently.
Is 1:1 tutoring helpful for A*?
Yes—especially to fix repeated mistakes, improve method marks, and build a weekly plan with accountability.
Optional CTA (EdFlik)
EdFlik offers affordable live IGCSE Maths online tutoring (Core and Extended), aligned to Cambridge and Edexcel, with weekly past-paper practice, method-mark training, and progress tracking.
Website: https://www.edflik.com
WhatsApp: +918878896600
Email: support@edflik.com
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