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Learn through the tempting mistake

Common maths mistakes, made visible

Move the diagram, make one decision, and see exactly why the common shortcut fails. Each fix leads into a complete problem you can try without signing up.

Circles

Which Tangents Are Actually Equal?

An interactive visual that fixes the common mistake of pairing tangent segments from different vertices.

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Arithmetic Progressions

Term Number Is Not the Jump Count

Move through an arithmetic progression and see why the nth term uses n minus 1 jumps.

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Pair of Linear Equations in Two Variables

Multiply the Whole Equation

See why an elimination multiplier must scale every term on both sides of an equation.

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Real Numbers

Fix the Remainder to HCF Mistake

An interactive visual that repairs a frequent Real Numbers reasoning mistake before the student attempts the full problem.

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Polynomials

Fix the Reciprocal Zeroes Mistake

An interactive visual that repairs a frequent Polynomials reasoning mistake before the student attempts the full problem.

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Quadratic Equations

Fix the Two Roots, Not One Mistake

An interactive visual that repairs a frequent Quadratic Equations reasoning mistake before the student attempts the full problem.

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Triangles

Fix the Match the Similar Triangles Mistake

An interactive visual that repairs a frequent Triangles reasoning mistake before the student attempts the full problem.

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Coordinate Geometry

Fix the Section Formula Balance Mistake

An interactive visual that repairs a frequent Coordinate Geometry reasoning mistake before the student attempts the full problem.

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Introduction to Trigonometry

Fix the Prove One Side Mistake

An interactive visual that repairs a frequent Introduction to Trigonometry reasoning mistake before the student attempts the full problem.

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Some Applications of Trigonometry

Fix the Observer Height Mistake

An interactive visual that repairs a frequent Some Applications of Trigonometry reasoning mistake before the student attempts the full problem.

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Areas Related to Circles

Fix the Shaded Ring Mistake

An interactive visual that repairs a frequent Areas Related to Circles reasoning mistake before the student attempts the full problem.

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Surface Areas and Volumes

Fix the Hidden Faces Mistake

An interactive visual that repairs a frequent Surface Areas and Volumes reasoning mistake before the student attempts the full problem.

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Statistics

Fix the Find the Median Class Mistake

An interactive visual that repairs a frequent Statistics reasoning mistake before the student attempts the full problem.

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Probability

Fix the Neither Event Mistake

An interactive visual that repairs a frequent Probability reasoning mistake before the student attempts the full problem.

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