Enlargement – the basic property Student activity Play

Enlargements in the coordinate system Student activity Play

Enlargements in the coordinate system Whiteboard exercise Play

Enlarging the right-angled triangle Simulation Play

Enlarging the right-angled triangle – the basic property Simulation Play

Enlarging the square Simulation Play

Enlarging the square – the basic property Simulation Play

Environmental variation of the arrowhead Animation Play

Factors affecting dispersion forces Student activity Play

Factors affecting particles Student activity Play

Factors affecting particles Animation Play

Finding the first term and the common ratio of the geometric sequence Whiteboard exercise Play

Finding the sum of the geometric series Whiteboard exercise Play

First steps in microbiology Student activity Play

Fixed-end reflection Simulation Play

Fixed-end reflection Student activity Play

Focal length and the shape of a lens Student activity Play

Focal length and the shape of a lens Simulation Play

Focal length and the shape of a lens Whiteboard exercise Play

Focusing of rays Student activity Play

Focusing of rays Simulation Play

Formula for the sum of an infinite geometric series Animation Play

Formulae of organic compounds. Part II Student activity Play

Free-end reflection Simulation Play

Free-end reflection Student activity Play