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Guides that actually help you learn

Practical revision guides, exam board comparisons and study advice — written by our founder, an MSc-qualified tutor with 20+ years of experience. No fluff, just the things students and parents actually ask us.

A-Level & Calculus

Derivatives: The Maths Behind Everything That Changes

What is a derivative, in plain English? How your GPS, your doctor and Netflix all use rates of change every day — and why calculus finally clicks when you learn the 'why' before the rules.

13 July 2026 6 min readRead guide

IGCSE & International

Edexcel vs CAIE IGCSE Maths — What's the Difference?

Pearson Edexcel International GCSE or Cambridge (CAIE) IGCSE Mathematics? A plain-English comparison of tiers, grading, papers, calculator rules and exam style — and what it means for your child.

12 July 2026 7 min readRead guide

GCSE Maths

How to Revise Circle Theorems for GCSE Higher Maths

All eight circle theorems explained in plain English, plus a five-step revision method, the exam wording that earns marks, and the mistakes that lose them.

12 July 2026 8 min readRead guide

Postgraduate & Applied Maths

Stochastic Calculus: Calculus for Things That Never Sit Still

What is stochastic calculus, in plain English? Why ordinary calculus breaks down for randomly-moving quantities like stock prices, and how Itô's Lemma — with its strange extra term — fixes it.

23 July 2026 7 min readRead guide

Postgraduate & AI

The Maths Behind Generative AI: GANs, VAEs and Diffusion Models

How do GANs, VAEs and diffusion models actually generate new images and text? The probabilistic ideas behind all three, in plain English — and the open research questions nobody's fully solved yet.

23 July 2026 8 min readRead guide

Undergraduate & Calculus

Fubini's Theorem: Why the Order of Integration Doesn't Matter

What is Fubini's Theorem in plain English? Why swapping the order of a double integral gives the same answer — and where this quietly powers physics, engineering and machine learning.

21 July 2026 4 min readRead guide

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