The children in the Steiner schools have been given an experience of colour from the very first classes. It is now a matter of lifting these things into consciousness and approaching them from a more rational point of view. Simple experiments and observations can be made.White is a picture of the light; black, of the dark. Light flows out; black concentrates. This can be seen by the simple example of an optical illusion. A whitedisc is shown on a black background, then a black disc of the same size on a white background. Invariably the white disc appears to be the greater.