Thanks to Jacquelien from Kids Artists for this idea.
Also the work of English Op Artist Bridget Riley (1931-). Image: Bridget Riley, 'Descending' 1965.
As a change from my usual Op Art inspired lesson I gave this grade 5/6 class a cube net upon which they had to draw optical illusions on the six sides of the cube. Some chose to do each side the same, others did each side differently. They outlined and coloured these in mostly black and white designs although some chose to use colour.