Regular polygons – the equilateral triangle Student activity Play

Regular polygons – the equilateral triangle Simulation Play

Regular polygons – the octagon Student activity Play

Regular polygons – the octagon Simulation Play

Regular polygons – the square Simulation Play

Regular polygons – the square Student activity Play

Relationships between quantities Student activity Play

Representations Whiteboard presentation Play

Representations Class activity Play

Resonanse of mechanical devices Animation Play

Ruler-and-compass construction Animation Play

Ruler-and-compass constructions Whiteboard presentation Play

Ruler-and-compass constructions Class activity Play

Ruler-and-compass constructions, locus (1) Class activity Play

Ruler-and-compass constructions, locus (1) Whiteboard presentation Play

Ruler-and-compass constructions, locus (2) Whiteboard presentation Play

Ruler-and-compass constructions, locus (2) Class activity Play

Rusting of steel Slideshow Play

Solving equations by trial and error (2) Class activity Play

Solving equations by trial and error (2) Whiteboard presentation Play

Some uses of aluminium Slideshow Play

Spring barometer Animation Play

Symmetry in a circle Student activity Play

Tangent to a circle Student activity Play

Tangent to a circle through a point not on the circle Student activity Play