AlgebraIntermediate9 min
First-Degree Equations: How to Isolate the Unknown Without Memorising Rules
Understand the equilibrium principle behind every equation and solve any first-degree expression with confidence — no formulas to memorise.
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ArithmeticBeginner9 min
Fractions Without Fear: How to Understand, Compare and Operate with Fractions
A fraction is not a strange beast: it represents parts of a whole or a division between numbers. Understand the meaning before memorising the rules.
Geometry & TrigonometryAdvanced9 min
Introduction to Trigonometry: Sine, Cosine and Tangent Without Getting Stuck
Trigonometry begins when you relate angles and sides of a right triangle. Understand the 'why' before memorising sin, cos and tan.
ArithmeticBeginner8 min
Percentage in Practice: Discounts, Increases and Everyday Comparisons
From store windows to credit card statements, percentages are everywhere. Understand the concept and stop relying on a calculator just to interpret the result.
ArithmeticBeginner8 min
Rule of Three Without Memorising: Find the Right Proportion in Any Situation
The secret of the rule of three is not the cross-multiplication — it is correctly identifying whether the quantities grow together or in opposite directions.
AlgebraIntermediate9 min
Simple Interest: Understanding the Linear Growth of Capital
When the rate is always applied to the original capital, growth happens in a straight line. Understand why this matters for your finances.