The perpendicular bisectors Simulation Play

The shortest way Whiteboard exercise Play

Three tears Animation Play

Tools that involve moment Whiteboard exercise Play

Transform a triangle into a rectangle Simulation Play

Transform a triangle into a rectangle Student activity Play

Trisecting an angle Animation Play

Using a map Student activity Play

Using a map Whiteboard exercise Play

Using a ruler and a compass Animation Play

Using measuring instruments to approximate constructions Student activity Play

Using ruler and protractor to approximate constructions Simulation Play

Using ruler and set-square to approximate constructions Simulation Play

Using scales and plans Student activity Play

Using scales and plans Whiteboard exercise Play

Using the basic constructions Student activity Play

What can we do with a ruler and a compass? Student activity Play

What can we do with a ruler and a compass? Simulation Play

What is a perimeter? Student activity Play