Hey, I am also in Physics with Calculus I using Halliday/Resnick 8th edition too! Our class just finished reviewing Chapter 7 (Kinetic Energy, Work, Spring Force, etc). So far, I have made high A's on both of our tests; Test 1 (97 - chapters 01-03) and Test 2 (100 - chapters 04-07). I will tell you right now though that I primarily spend about 60% of my time reading the chapters/sections as our class progresses through. Most of my classmates usually jump straight into the homework problems in the back of the chapters without reading the material because they believe lecture is sufficient. My best advice for you is to read the chapters at a decent pace, but with great comprehension of the subject material! Great understanding of the physical concepts provides the foundation and framework for mastering the homework problems in the back along with the skills and knowledge of being able to derive other equations as a result of thorough understanding of the key concepts and their mathematical implications. I for one usually work on the 1-dot and 2-dot problems for each section when I am ready to do the end of the chapter homework problems. To further enhance my problem-solving ability, I also work on the "additional exercises" at the end of each chapter's homework section. These particular "additional exercises" really tests the different concepts without any hint as to the level of difficulty of the problem.