Andy Talmadge joined the faculty of Country Day in 2009. He earned a BS in physics from the University of North Carolina at Charlotte and a PhD in applied mathematics from North Carolina State University. Andy has a strong interest in applications of differential geometry to the problems of elementary particle theory. He has published research in this area in the Journal of Mathematical Physics and the International Journal of Mathematics and Mathematical Sciences. He has spent much of his career doing pure and applied mathematics, most recently at Dillard University, but his interest in teacher development has been part of his work since graduate school. From 1994 until 1998 he was the associate director of The National Faculty's Delta Teachers Academy headquartered in New Orleans (USDA funded). The Academy served more than 1,500 teachers in the Lower Mississippi Delta region, providing high quality, school-site specific, professional development. Andy joined the faculty of the University of New Orleans in 2002 to work in the fields of mathematics and science education. There he worked to train more than one hundred mathematics and science teachers for work in the New Orleans area. Additionally, Dr. Talmadge has worked as a consultant for The Algebra Project and numerous schools and school districts within Louisiana and other sites where AP projects were implemented. Since 2005 he has directed the annual summer Math Science Institute a professional development program for middle and upper level mathematics and science teachers.. Since joining the faculty of Metairie Park Country Day school, he has worked with middle and upper school students in science, mathematics, and computer programming. He also directs the school's mathematics competitions at upper school level with a group of students called Mathletes.