A block on a disc Whiteboard exercise Play

A disc and a weight Animation Play

A disc containing n lattice points Animation Play

A disc in the coordinate system Animation Play

A rod cell's signal-transduction pathway Slideshow Play

A story of three goats Student activity Play

CDs Whiteboard exercise Play

Circles and discs Slideshow Play

Circles and discs Student activity Play

Compact disc Slideshow Play

Coordinate geometry of a circle Whiteboard presentation Play

Coordinate geometry of a circle Class activity Play

Digital recording standards Animation Play

Discs in the coordinate system Student activity Play

Energy transformations in an electrical circuit Student activity Play

Erythrocytes – red discs Whiteboard exercise Play

Finding the number of common points of the coordinate axes and the disc Whiteboard exercise Play

Goats Whiteboard exercise Play

How many were there? Whiteboard exercise Play

How many were there? A more difficult problem Student activity Play

How to differentiate between analogue and digital? Student activity Play

Interference on reflection Student activity Play

Lattice points on a disc Simulation Play

Lattice points on a disc Student activity Play

Light absorption by rhodopsin – the formation of a nerve impulse Student activity Play