I teach a Fractals and Chaos course for secondary math and science teachers as part of a graduate degree program. I assign Wallpaper as a programming exercise prior to assigning the Mandelbrot set algorithm as a programming exercise. An orderly method for exploring a section of the coordinate plane is needed in both.
Wallpaper is an interesting application of the circle formula and odd and even numbers.
Watch this short video to see Wallpaper in action.
Go to this link to download the Scratch file for this project.
I also have a free PDF file that goes into more detail about the math and the Scratch coding. It is available free, on request, by sending an email to email@example.com.
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