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B5- Helping Your Child with GCSE Maths – Key Topics & Exam Tips

March 03, 20255 min read


Introduction

GCSE Maths can be one of the most challenging subjects for students, with many struggling to grasp key concepts or apply problem-solving techniques under exam conditions. As a parent, you might be wondering how you can help, especially if Maths wasn’t your strongest subject!

This guide will walk you through the most important GCSE Maths topics, the best study techniques, and exam tips to help your child boost their confidence and achieve top grades.

Let’s get started!


Why GCSE Maths Is So Important

Maths isn’t just another subject—it’s a core GCSE that plays a major role in:
✔️ College and Sixth Form Applications – Many A-Level courses require a minimum pass in Maths.
✔️ Future Careers – Jobs in engineering, IT, finance, and even psychology require strong numeracy skills.
✔️ Everyday Life – Maths skills are essential for budgeting, problem-solving, and logical thinking.

This makes strong preparation essential—but where should your child focus their efforts?


Key GCSE Maths Topics Every Student Must Master

GCSE Maths covers a wide range of topics, but some appear more frequently in exams than others. Below are the high-priority topics your child should focus on:

1. Algebra (20-30% of the exam)

✅ Expanding and factorizing expressions
✅ Solving equations (linear, quadratic, simultaneous)
✅ Rearranging formulae
✅ Inequalities and number lines

📌 Exam Tip: Many students lose marks on algebra mistakes due to small calculation errors. Encourage your child to check their work step by step before moving on.


2. Fractions, Decimals & Percentages

✅ Converting between fractions, decimals, and percentages
✅ Percentage increase, decrease, and reverse percentages
✅ Recurring decimals

📌 Exam Tip: Many percentage questions involve real-life scenarios (e.g., VAT, discounts, interest rates), so practising word problems is essential.


3. Ratio & Proportion

✅ Direct and inverse proportion
✅ Scale factors and maps
✅ Recipes and mixing ratios

📌 Exam Tip: In worded problems, highlight key numbers and write ratios in simplest form before attempting to solve them.


4. Geometry & Trigonometry

✅ Pythagoras’ Theorem
✅ SOH CAH TOA (basic trigonometry)
✅ Area and perimeter of complex shapes
✅ Circle theorems

📌 Exam Tip: Always draw a diagram when dealing with shape and space questions—it makes solving them much easier!


5. Probability & Statistics

✅ Probability trees
✅ Mean, median, mode, and range
✅ Cumulative frequency and box plots

📌 Exam Tip: In probability questions, remind your child that probabilities must always add up to 1—this is a great way to double-check answers.


6. Graphs & Functions

✅ Straight-line graphs (y = mx + c)
✅ Quadratic and cubic graphs
✅ Transformations of graphs

📌 Exam Tip: Many graph questions test interpretation skills, so encourage your child to practise reading values correctly from charts and graphs.


Best Revision Techniques for GCSE Maths

1. Past Paper Practice – The Best Way to Improve

📌 Why? The GCSE Maths exam follows a pattern—practicing past papers helps students recognize question types and improve speed.

✅ Download past papers from AQA, Edexcel, or OCR websites.
✅ Time practice sessions to improve exam speed.
✅ Use mark schemes to understand how marks are awarded.

📌 Parent Tip: Encourage your child to do at least one full paper per week leading up to exams.


2. Flashcards for Key Formulas

📌 Why? The non-calculator exam requires quick recall of formulas like:
✔️ Area & volume formulas
✔️ Speed, density, and pressure equations
✔️ Quadratic formula

✅ Create flashcards or use apps like Quizlet.
✅ Stick formula sheets around the house for quick revision.

📌 Parent Tip: Quiz your child on formulas at random times—it helps with memorization!


3. The "Explain It" Method (Feynman Technique)

📌 Why? Teaching someone else strengthens understanding.

✅ Ask your child to explain a Maths concept to you in simple terms.
✅ If they struggle, it shows gaps in knowledge that need reviewing.

📌 Example: If they’re learning Pythagoras’ Theorem, ask them:
"Why does it work? How do we apply it in real life?"


4. Using Maths Apps & Online Resources

📱 Best GCSE Maths Apps & Websites:
✔️ Corbettmaths – Free GCSE Maths videos & worksheets
✔️ DrFrostMaths – Interactive quizzes & step-by-step solutions
✔️ BBC Bitesize – Quick revision guides & practice tests
✔️ Hegarty Maths – Online tutorials and quizzes

📌 Parent Tip: If your child prefers digital learning, encourage them to use these interactive resources as part of their revision routine.


GCSE Maths Exam Day Tips

1. Bring the Right Equipment

✅ Calculator (Casio FX-83GTX or FX-85GTX recommended)
✅ Protractor & compass
✅ Ruler & highlighters

📌 Parent Tip: Buy a spare calculator in case of emergencies!


2. Show All Working for Marks

✅ Even if the final answer is incorrect, marks are awarded for method.
✅ Encourage writing clear step-by-step solutions.

📌 Parent Tip: If your child often makes small mistakes, remind them to double-check their work before moving on.


3. Manage Exam Time Wisely

1 mark = 1 minute rule – Don’t spend too long on a single question!
✅ Skip tricky questions and return to them later.
✅ Leave 5 minutes at the end to check answers.

📌 Parent Tip: If your child often runs out of time, practice timed past papers to improve their speed.


Final Thoughts: How You Can Support Your Child

Maths revision doesn’t have to be stressful—by focusing on key topics, practicing past papers, and using active study techniques, your child can improve their GCSE Maths grade with confidence.

🌟 My Previous Blog Post: The Biggest GCSE Study Mistakes – And How to Avoid Them

🌟 Next Blog Post: How to Support GCSE English – Improving Writing & Literature Analysis

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Does your Year 10 or Year 11 child need support with their GCSE exam revision in maths, science or English revision? Contact us at the academy on 07723 177 706 or email [email protected]

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Ms Ade'Kunbi

Ms Ade'Kunbi is our Academy Lead. She's been involved in GCSE exam preparation for over 25 years and also owns a tuition centre which has supported hundreds of students over the last 14 years.

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