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 Class activity Play

Representations Whiteboard presentation 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) Whiteboard presentation Play

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

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

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

Rusting of steel Slideshow Play

Some uses of aluminium Slideshow Play

Sorting materials into two groups Whiteboard exercise Play

Specific heat capacities of selected materials Slideshow Play

Speed of light in transparent materials Illustration Play

Spring barometer Animation Play

Statements about solids Whiteboard exercise 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

Tangents Student activity Play