Dot plot Student activity Play

Dot plot – earthquakes in Switzeland Simulation Play

Dot plot – graphical representation of variables Whiteboard exercise Play

'Double quadratic' equations Student activity Play

Employment lay-offs Student activity Play

Encoding numbers Student activity Play

Equations in two variables Whiteboard exercise Play

Equations in two variables Student activity Play

Equations with one variable Student activity Play

Equations with one variable Whiteboard exercise Play

Equations with separable variables Whiteboard presentation Play

Equations with separable variables Class activity Play

Equations with  cos(ax) Student activity Play

Example of introducing a new variable Animation Play

Example of solving a system of linear equations by substitution Animation Play

Example of solving a trigonometric equation Animation Play

Examples of description of class intervals Animation Play

Expected value and population variance Whiteboard exercise Play

Expected value and population variance Student activity Play

Experimental data Student activity Play

Factorisation using the difference of squares Student activity Play

Factorisation using the difference of squares Whiteboard exercise Play

Finding factorisation Animation Play

Finding the frequencies from a histogram Student activity Play

Finding the solution of a non-quadratic equation Animation Play