Creating symmetrical triangles Whiteboard exercise Play

Critical points Student activity Play

Critical points Whiteboard exercise Play

Decoding a message Whiteboard exercise Play

Decoding a message Student activity Play

Definition of enlargement Student activity Play

Definition of trigonometric functions Student activity Play

Derivative of the function at a point Student activity Play

Derivative of the function at a point Whiteboard exercise Play

Deriving Cartesian equations of a locus Student activity Play

Describing the route of the ant Whiteboard exercise Play

Describing the route of the ant Student activity Play

Different types of point mutations Whiteboard exercise Play

Diffraction Whiteboard exercise Play

Diffraction Student activity Play

Diffraction and interference Whiteboard presentation Play

Diffraction of electrons – the Davisson-Germer experiment Student activity Play

Diffraction of electrons – the Davisson-Germer experiment Animation Play

Diffraction of electrons – the Davisson-Germer experiment Whiteboard exercise Play

Diffraction of waves and Huygens' principle Animation Play

Diffraction of waves and Huygens' Principle Student activity Play

Diminution Animation Play

Direct proportionality models Student activity Play

Direct proportionality models Whiteboard exercise Play

Distance between centres of two circles Whiteboard exercise Play