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Chapter 1 - Chapter-by-Chapter Guide Part I Developing...

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Part I 1 Chapter-by-Chapter Guide Part I: Developing Perspective The remainder of this Instructor’s Guide goes through the book chapter by chapter. Within each chapter, it is organized as follows: A brief introduction with general comments about the chapter. “What’s New in the Fourth Edition That Will Affect My Lecture Notes?” This short section is aimed at those who may have notes from teaching with the third edition of our book. Teaching Notes. Organized section by section for the chapter, these are essentially miscellaneous notes that may be of use to you when teaching your course. Answers/Discussion Points for Think About It Questions. Solutions to End-of-Chapter Problems. Chapter 1. Our Place in the Universe The purpose of this first chapter is to provide students with the contextual framework they need to learn the rest of the course material effectively: A general overview of our cosmic address and origins (Section 1.1), an overview of the scale of space and time (Section 1.2), and an overview of motion in the universe (Section 1.3). We often tell students that, after completing this first chapter, they have essentially learned all the major ideas of astronomy, and the rest of the course will be building the detailed scientific case for these general ideas. As always, when you prepare to teach this chapter, be sure you are familiar with the relevant media resources (see the complete, section-by-section resource grid in Appendix 3 of this Instructor’s Guide) and the online quizzes and other resources available on the MasteringAstronomy Web site. What’s New in the Fourth Edition That Will Affect My Lecture Notes? Those who have taught from previous editions of The Essential Cosmic Perspective should be aware of the following organizational or pedagogical changes to this chapter (i.e., changes that will influence the way you teach) in the fourth edition: We have updated this chapter to include discussion of the new IAU definitions relating to the planetary status of Pluto and other objects. We have added a Cosmic Calculations box on the length of a light-year. Notice the new annotated figures, which continue throughout the text.
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2 Chapter-by-Chapter Guide Teaching Notes (by Section) Section 1.1 Our Modern View of the Universe This section provides a brief summary of our modern view of the universe, including its hierarchical structure (our cosmic address) and its history (our cosmic origins). We urge you to pay special attention to the full-page Figure 1.1 and the two-page Cosmic Context Figure 1.2. These pieces should help your students keep our cosmic address and origins in context throughout the course, and you may wish to refer back to them often. Note the box on “Basic Astronomical Objects, Units, and Motion.” Although some of the terms in this box are not discussed immediately, placing them in the beginning of the book should be helpful to students. All these terms also appear
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