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Students at a North Carolina middle school learned about scale, proportion, volume and other mathematical concepts during a yearlong project. The students built a paper pyramid based on the Sierpinski triangle fractal -- a mathematical design in which matching smaller pieces make up each large piece. The 9-foot-tall pyramid -- made of 1,024 smaller paper pyramids -- has earned the math club a place in the Guinness World Records.
http://www.newsobserver.com/2013/10/27/3310368/ravenscroft-math-club-builds-giant.html