Mastering GCSE & IGCSE: A Specialist SEN Guide to Exam Technique and Maths Success

Written by Mr James | SEN Specialist & Executive Functioning Coach | Bangkok

Who Is This Blog For?

If you are a student with ADHD, Autism, Dyslexia, or any other learning difference, and you are working towards your GCSEs or IGCSEs — this blog is written specifically for you.

You are not 'bad at exams.' You have simply never been shown how to approach them in a way that works for your brain.

PART ONE: Understanding Why Exams Feel So Hard for Neurodivergent Students

Before we talk technique, let's talk honestly about why exams are particularly challenging if you are neurodivergent.

The three biggest exam struggles for SEN students are:

1. Working Memory Overload – Your brain is trying to recall facts, manage time, read the question carefully, and write a structured answer — all at the same time. For students with ADHD or processing difficulties, this is genuinely exhausting and often leads to blanking out mid-exam.

2. Time Blindness – Many students with ADHD experience 'time blindness' — the inability to feel how much time is passing. This leads to spending 40 minutes on a 4-mark question and rushing the final 20 marks in a panic.

3. Anxiety and Perfectionism – Many neurodivergent students are perfectionists. They re-read the same question five times, second-guess every answer, and freeze when they don't know something immediately.

The good news? All three of these challenges can be managed with the right strategies.

PART TWO: General Exam Paper Technique for SEN Students

Strategy 1 — Read the Paper First (All of It)

Before you write a single word, spend 5 minutes reading the entire paper. This gives your brain time to identify the questions you feel confident about, begin processing harder questions in the background, and reduce the shock of seeing an unfamiliar topic.

Strategy 2 — Mark Allocation = Time Allocation

1 mark = approximately 1 minute of writing time. A 6-mark question should take roughly 6 minutes. A 2-mark question should take no more than 2–3 minutes.

Strategy 3 — Answer Easy Questions First

Do not work through the paper in order if it doesn't suit you. Instead, go through and answer everything you know confidently, circle questions you are unsure about, then return to them with remaining time.

Strategy 4 — Decode the Command Words

Exam questions use specific command words. Misreading them is one of the most common reasons students lose marks.

Strategy 5 — The Brain Dump

As soon as the exam starts, spend 2 minutes writing everything you remember on a blank corner of the paper — key formulas, dates, vocabulary, mnemonics.

PART THREE: Maths — The SEN Student's Survival Guide

Maths is often the subject that causes the most anxiety for neurodivergent students.

Why Maths Is Particularly Hard for SEN Students:

• Sequencing difficulties make multi-step problems feel overwhelming.

• Working memory issues mean students lose track of where they are mid-calculation.

• Dyscalculia affects number sense and spatial reasoning.

• Anxiety causes students to 'go blank' even on topics they know well.

Maths Exam Technique: Step by Step

Rule 1 — Always Show Your Working.

Rule 2 — Write the Formula First.

Rule 3 — Estimate Before You Calculate.

Rule 4 — Check Units.

Rule 5 — Use the Formula Sheet.

The RUCSAC Method for Word Problems:

R – Read the question carefully (twice).

U – Underline the key information and numbers.

C – Choose the correct operation or formula.

S – Solve the problem, showing all working.

A – Answer the question in a full sentence.

C – Check your answer makes sense.

Key Topics to Prioritise for IGCSE Maths:

Algebra: Solving equations, expanding brackets, factorising.

Percentages: Percentage change, reverse percentages, compound interest.

Geometry: Area, perimeter, volume, Pythagoras' theorem, trigonometry.

Graphs: Plotting, gradient, y-intercept, distance-time graphs.

Statistics: Mean, median, mode, range, cumulative frequency.

PART FOUR: Access Arrangements — Know Your Rights

If you have a diagnosis of ADHD, Autism, Dyslexia, or another learning difficulty, you may be entitled to access arrangements in your exams such as extra time, a reader, a scribe, rest breaks, use of a laptop, or a separate room.

These are not 'cheating.' They level the playing field so your results reflect your actual ability, not your disability.

Speak to your school's SENCO or contact Mr James directly to find out what you may be entitled to.

PART FIVE: A Final Word of Encouragement

To every SEN student reading this: You have already shown enormous resilience simply by being here, working towards your GCSEs or IGCSEs whilst managing a brain that processes the world differently.

Your grades do not define your intelligence. Your effort, your growth, and your character do. With the right strategies, support, and belief in yourself, those grades can absolutely reflect how brilliant you truly are.

Need Personalised Support?

Mr James works one-to-one with GCSE and IGCSE students across Bangkok's international schools, providing specialist SEN support, executive functioning coaching, and tailormade exam preparation.

Book your 45-Minute Discovery Call today:

Email: james@senspecialists.org

WhatsApp (UK): +44 742 1201 281

Line (UK): +44 742 1201 281

Let's build the strategy that gets you the results you deserve.