Reflecting telescopes Student activity Play

Refraction of plane waves Whiteboard exercise Play

Refraction of plane waves Student activity Play

Regular polygons – the equilateral triangle Student activity Play

Regulation of gene expression in eukaryotes Animation Play

Regulation of gene expression in eukaryotes Student activity Play

Relationship between distance and time Animation Play

Road signs Animation Play

Roemer's proof Student activity Play

Role of adrenaline Slideshow Play

Rolling and rotations Student activity Play

Roots of a polynomial Student activity Play

Rounding a number Animation Play

Satellite television Slideshow Play

Satellite television Student activity Play

Satellites Class activity Play

Satellites Whiteboard presentation Play

Satellites Class activity Play

Satellites Whiteboard presentation Play

Ships Animation Play

Short-sightedness Animation Play

Sides of a line Student activity Play

Sides of a line Whiteboard exercise Play

Sight defects Student activity Play

Sight defects Simulation Play