Only those topics that are essential to the study of calculus are included. Functions as models of change is the central theme. This is based on the belief that the components of a next generation precalculus curriculum should be tied together by a clearly defined theme, with algebra developed as needed. Allows for a broad range of teaching styles. This text is flexible enough for use in large lecture halls, small classes, or in group or lab settings.
Technology has a place in modern mathematics.
This text takes full advantage of technology when appropriate, although no specific technology is emphasized. It is important for students to learn how and when to use technology as a tool, as well as its limitations. The chapters have been reorganized to place each family of functions in a separate chapter where possible. The more theoretical material from Chapter 3 in the Draft Version has been moved to Chapters 4 and 7 in the Preliminary Edition so that students encounter the more abstract concepts later in the course. A new Chapter 6 includes new material on polar coordinates and vectors.