An unusual yet accessible way for children to create an optical illusion. Starting with a life-size outline of a person, the shape is then filled with parallel lines of contrasting colours. Each time the outline is crossed the line bumps slightly to create the 3D effect. Upon completion, the entire figure appears to be raised from the paper. Can be used on a small scale or as a large piece of display covering an entire wall. Larger pieces will probably have greatest effect. There is a brief animated reference to the English Op Art artist Bridget Riley, as well as some of her works, to set this in context and add an element of art history.

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Teach

Children could draw parallel lines over given outlines to produce this effect. Encourage them to experiment with a range of simple objects and shapes, and come up with their own ideas.