Pythagorean Triplets — Interactive Visual Maths Tool (Full Version)
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Pythagorean Triplets is an interactive maths teaching tool designed to help students understand Pythagoras visually before moving on to formal missing-side calculations.

Each right-angled triangle is shown with colour-coded squares built on its three sides, allowing students to see that the areas of the two smaller squares combine to equal the area of the square on the hypotenuse. This helps make a² + b² = c² meaningful rather than simply a formula to memorise.

The Full Version includes five teaching and practice modes:

[A] Complete Diagram — Explore whole-number Pythagorean triplets using labelled square grids and calculations.

[B] Missing Hypotenuse — Hide the largest square, predict the missing side and reveal the calculation step by step.

[C] Missing Shorter Side — Model subtraction of square areas and reinforce why finding a shorter side requires a different process.

[D] Mixed Missing Side — Randomised right-angled triangle questions using decimal side lengths. Students must decide whether to add or subtract, with answers calculated to two decimal places.

[E] Four Questions — Four mixed practice questions displayed together with individually revealed answers and optional hints — ideal for mini-whiteboards, questioning, intervention or independent practice.

Additional features include selectable Pythagorean triplets, Shuffle/Next controls, colour-coded working, optional a, b, c side notation and fullscreen classroom display.

Suitable for KS3, GCSE Foundation/revision, intervention, tutoring and interactive-whiteboard teaching.

Simply download the standalone HTML file and open it in a modern browser. No installation, account or internet connection is required.

Best used on desktop/laptop. Browser zoom can be adjusted if required to suit your display.