A lesson to follow the one already given might consist of a short explanation and demonstration by the teacher of the work to be done, followed by a seat exercise in which the pupils make three two-inch squares on a strip of drawing paper. The middle square is then covered with red, using the red crayon in full strength.
Over the square to the left a smooth, light layer of the crayon is rubbed, while over the third square is first put a light, even layer of charcoal, which is then covered by the red crayon used in full strength. The three squares, when finished, represent standard red, a light red, and a dark red.
The lesson is intended to prepare the class for the representation of simple flowers and fruit, where a lighter or darker tone than the standard is often required.
The other five colours should be taken up in a manner similar to that suggested for red.