Art: Making a mark

Line and tone are at the very basics of teaching art and design. The quality of a line can vary enormously, from the faintest and most precise of lines made by the sharpest pencil, to the broadest and bluntest sweeping gesture from a thick stick of charcoal. Similarly, picture a selection of blue objects and you’ll quickly appreciate that within a single colour there is an almost endless range of tones – light, medium, dark and all points in between – to be found.