The difference of squares – common factor first! Student activity Play

The dimensions of the paper sizes Whiteboard exercise Play

The equilateral triangle and the square Whiteboard exercise Play

The exact area of a rectangle Whiteboard exercise Play

The formula for the difference of squares Whiteboard exercise Play

The formula for the difference of squares Whiteboard exercise Play

The formula for the difference of squares Student activity Play

The formula for the square of a difference Student activity Play

The formula for the square of a sum Student activity Play

The graph of the quadratic function Animation Play

The graph of the square root function Animation Play

The hexagon and the square Whiteboard exercise Play

The last digit Animation Play

The lawn Student activity Play

The least squares method Whiteboard exercise Play

The least squares method Student activity Play

The lines of symmetry Whiteboard exercise Play

The medieval octagon Animation Play

The method of 'halving the arcs' Whiteboard exercise Play

The per cent of the square's area Animation Play

The perfect square and quadratic equations Animation Play

The perfect square in quadratic equations Animation Play

The perimeter and the length of a side of a square Whiteboard exercise Play

The Punnett square Student activity Play

The Punnett square Slideshow Play