Did you get any more ideas about the ways to create an optical illusion? Describe your mathematical thinking about ways to do that.Can you see any patterns, fractions, or decimals in your artwork? Where are they?.Think of a mathematical question that you could ask about your artwork.If someone else wanted to recreate your artwork, what directions would you give them?Įxtensions It is interesting to think about what creates an illusion in optical art.Do optical illusions have certain mathematical properties? One idea would be for the whole class to display their designs and look together to see if certain designs create particular visual properties.