Biggs. 2005. Biology: The Dynamics of Life. McGraw Hill. A High School Biology text, the teacher's edition offers lecture, discussion cues, and demonstrations.
Diamond. 1992. The third chimpanzee. Harper Perennial. This book is an excellent discussion of the human animal and its relativity to other species. Presents human evolution as a discussable topic introducing behavioral and societal evolution in a new light, it is loaded with fodder for class discussion.
Deak & Sawyer. 2007. The last human. Yale University Press. This picture book and text offers fascinating look at hominid ancestors with vivid picture and recreations. It is perfect to have on hand for discussion of human evolution.
Dembski. 2004. The design revolution. Inter Varsity Press. A book refuting evolution and discussing the intelligent design theory, it can be somewhat disturbing yet enlightening to instructors to read intelligently crafted arguments against evolution, especially to those instructors anticipating a strong resistance to the topic.
Domingo. 2008. Origin and Evolution of Viruses. Academic Press. This college level text offers a survey of how evolutionary thought illuminates medical science.
Freeman & Herron. 2004. Evolutionary Analysis. Pearson/Prentice Hall. An introductory college text discussing evolutionary concepts; the first chapter offers in depth analysis of HIV.
Nesse & Williams. 1996. Why We Get Sick: The New Science of Darwinian Medicine. Vintage. A highly readable tome of evolutionary medicine; this book will offer many examples to the instructor and put many concepts of evolution into health and body context.