A thorough grounding in contemporary physics while placing the subject into its social and historical context. Based largely on the highly respected Project Physics Course developed by two of the authors, it also integrates the results of recent pedagogical research. The text thus teaches the basic phenomena in the physical world and the concepts developed to explain them; shows that science is a rational human endeavour with a long and continuing tradition, involving many different cultures and people; develops facility in critical thinking, reasoned argumentation, evaluation of evidence, mathematical modelling, and ethical values. The treatment emphasises not only what we know but also how we know it, why we believe it, and what effects this knowledge has.UNDERSTANDING PHYSICS is an innovative introductory course designed for students preparing to enter careers in fields outside of science or engineering, including students planning to teach, or already teaching, in K-12 classrooms. It is inspired by the famous Project Physics Course, which became known for its success in inspiring students with the excitement of physics by placing its concepts within a broader humanistic context.&UNDERSTANDING PHYSICS enables students to gain a full appreciation of physics both as a discipline and as a body of knowledge: a sense of what the concepts mean, where they came from, and why we think we know what we know. The course is among the first to accommodate recommendations of the National Science Education Standards from the National Academy of Sciences and the Benchmarks for Science Literacy from Project 2061 at the college level. Understanding Physics also incorporates the most recent advances in understanding how students learn physics and where they encounter difficulties, and it offers great flexibility to instructors to adapt the course to the needs of their students and to their own needs and interests.&The course components - textbook, student guide, instructor guidló„