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I'm a professor of math and math education. Taught university in the US for 10 years and then moved to Norway to work with the national center for math education. I give courses to teachers, mainly, but also pupils, students and the public. These courses are on any topic: an area in math, or teaching or testing, but my favorite courses are in math art. I starting making math art about 10 years ago. You can see some at nakedgeometry.com. I took the name as a play on "sacred geometry".