From the reviews:
"If a book is required which develops the basic concepts of physics in a detailed but completely readable and always interesting way from first principles, then this could certainly be a candidate. It uses the rather outdated historical approach to each chapter's material, but far from obscuring the important physical results, the approach as used here has been so carefully constructed that one is led to an understanding of the concepts without really noticing that one has arrived!" (Prof. F. W. Bullock, Contemporary Physics, Vol. 44 (6), 2003)
"Understanding Physics is inspired by the famous Project Physics Course ... . The inquiry-based laboratory investigations include in-depth explorations, student-designed inquiries, and text-related mini-laboratory explorations that may be used as hands-on activities or as demonstrations with student participation." (Meteorology and Atmospheric Physics, Vol. 84 (1-3), 2003)
"If a book is required which develops the basic concepts of physics in a detailed but completely readable and always interesting way from first principles, then this could certainly be a candidate. It uses the rather outdated historical approach to each chapter's material, but far from obscuring the important physical results, the approach as used here has been so carefully constructed that one is led to an understanding of the concepts without really noticing that one has arrived!" (Prof. F. W. Bullock, Contemporary Physics, Vol. 44 (6), 2003)
"Understanding Physics is inspired by the famous Project Physics Course ... . The inquiry-based laboratory investigations include in-depth explorations, student-designed inquiries, and text-related mini-laboratory explorations that may be used as hands-on activities or as demonstrations with student participation." (Meteorology and Atmospheric Physics, Vol. 84 (1-3), 2003)