) received his Ph.D. in algebraic semigroups under Mario Petrich at Penn State, and is now an associate professor of mathematics at Temple University in Philadelphia. He has written several textbooks on finite mathematics and calculus (with R. Coughlin), a computer lab manual for linear algebra (with D. Hill), a liberal-arts text using ethnomathematics in a collaborative setting, and a book on the history of the EPADEL Section of the MAA. Recently he wrote about the origin and early impact of the Moore Method. He runs daily, and also teaches windmill softball pitching.