Stephen Krulik, Ed.D. died on October 2, 2023 after a long battle with Parkinson's Disease. Known by almost everyone as Steve, Dr. Krulik was one of the world's foremost experts on problem solving in Mathematics. Over the course of his 55-year career Dr. Krulik authored or co-authored more than 30 books, many of which were translated into other languages for global use, and gave more than 350 presentations at conferences around the world. He was honored by Temple University in 2001 with the Lindbach Award as an outstanding professor and in 2003 with the university's Great Teacher Award. In 2011 he was awarded the Lifetime Achievement Award by the National Council of Teachers of Mathematics. Those awards were well-earned, as many of them came as a result of nominations from his students. As one nominator for the NCTM Lifetime Achievement Award wrote, ""His teaching provided opportunities for us to experience how it felt to learn to be a problem solver.... The way I thought about mathematics and my teaching of mathematics changed dramatically when I became a problem solver.\n Dr. Krulik taught in the New York City Public Schools beginning in 1954 before taking a position at Temple University in 1969, where he remained a professor until retiring as professor emeritus in 2006. In addition to his membership in the National Council of Mathematics, he served as president of the Association of Mathematics Teachers of New Jersey.\n Stephen Krulik is survived by his beloved wife, Gladys, his daughter Nancy (Daniel) his \n\n\nson Jeffrey (Amy), and his four grandchildren Amanda (Alex), Ian, Sarah and Emily.