Randy K. Yerrick is professor of science education and associate dean of educational technology at the State University of New York at Buffalo. He began his career as a chemistry, physics, and math teacher in Michigan schools before becoming a full-time researcher in science education. Yerrick's research focuses on implementing contemporary visions of science inquiry in lower track classrooms where students share a strong history of failure and antisocial school behaviors. He has conducted ethnographies and critical autoethnographies in a variety of diverse teaching contexts as he continues to examine unresolved school issues of equity and diversity promoted by the continuous practice of tracking in science. He has also received recognition as an Apple Distinguished Educator. Examples of his work can be found at http://edcommunity.apple.com/.