The gradient of a line Student activity Play

The gradient of a line perpendicular to the  x-axis Animation Play

The gradient of a straight line Whiteboard exercise Play

The gradient of a straight line Student activity Play

The gradient of the road Whiteboard exercise Play

The graphical solution of an inequality Animation Play

The graphs that are constant functions Whiteboard exercise Play

The information from the graph Animation Play

The intercept form of a straight line Animation Play

The intercept form of the equation of a straight line Student activity Play

The intercept form of the equation of a straight line Whiteboard exercise Play

The least squares method Student activity Play

The length of a metal rod Animation Play

The line and the circle Whiteboard exercise Play

The line and the circle Student activity Play

The line in a coordinate system Animation Play

The line of best fit by inspection Student activity Play

The line of best fit by inspection Whiteboard exercise Play

The line that was used in the symmetry Whiteboard exercise Play

The lines of symmetry Whiteboard exercise Play

The normal Class activity Play

The normal Whiteboard presentation Play

The notion of a half-plane Student activity Play

The notion of a half-plane Whiteboard exercise Play

The number line Whiteboard exercise Play