Kenny Felder has taught physics and math at Raleigh Charter High, North Carolina, for more than twenty years. He received his Bachelor's degree in Physics with highest honors from the University of North Carolina at Chapel Hill. His book Advanced Algebra II pioneered much of the active learning pedagogy included in this textbook and was described by the Connexions project at Rice University as 'a non-traditional approach to a very traditional subject' that makes 'the world of second-year algebra come alive.' He and Gary Felder also co-authored Mathematical Methods in Engineering and Physics (2016).