NACOGDOCHES, TX (KTRE) - It took 300 hundred students about two hoursto break a Guinness World Record for their Sierpinski triangle. During STEM day at SFAstudents got hands on learning experience ...

He and his senior class made an eight-foot Sierpinski Triangle, a "a fractal and attractive fixed set named after the Polish mathematician Wacław Sierpiński" out of $75 worth of pennies.