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Please select your subject and topic to access 800 free interactive classroom resources for technology (electronics), mathematics, physics, advanced physics and chemistry from the acclaimed Absorb courseware aimed at ages 14+. New  resources now play using the full screen  perfect for whiteboard use!
On the rest of Yenka.com you'll find flexible 3D simulation and modelling tools for mathematics and technology teaching. We also publish Crocodile Chemistry, ICT and Physics  award winning simulation tools sold worldwide.
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Pythagoras' theorem model
An interactive animation illustrating a geometric proof of Pythagoras' theorem. Click the arrow button to watch the anim… full details...

Proving the angle sum
An interactive animation demonstrating the proof of the fact that the sum of internal angles of any triangle is 180º. Cl… full details...

Demonstrating Pythagoras' theorem 1
An interactive animation demonstrating a proof of Pythagoras' theorem. Click the number buttons to observe the steps req… full details...

Demonstrating Pythagoras' theorem 2
An interactive animation demonstrating a proof of Pythagoras' theorem. Click the number buttons to observe the steps req… full details...

Proving exterior angle equals sum of opposite interior angles
An interactive animation demonstrating a geometric proof of the fact that the exterior angle of any triangle equals the … full details...

Calculating the length of the diagonal
An interactive animation to calculate the length of a diagonal of a cube. Click the numbered buttons to reveal the steps… full details...

A cone
An interactive animation illustrating how to use Pythagoras' theorem to calculate the height of a cone. Click the triang… full details...

Working out the shortest distance
An interactive animation demonstrating how to calculate the shortest distance between two points using a rightangled tr… full details...

A bridge
An interactive animation to calculate the height of the highest point of a bridge. Click the arrow button to reveal the … full details...

A ramp
An interactive animation illustrating Pythagoras' theorem in three dimensions. Click the numbered buttons to reveal the … full details...