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In this textbook there are many problems that ask you to look at situations in new and different way. This chapter offers some strategies to approach these problems. Although some of the problems in this chapter are fictitious, they give you a chance to practice skills that you will use throughout the book and throughout life.
The algebra you find in this book won't look quite like the algebra you may have seen in older textbooks. The mathematics we learn and teach in school has to change continually to reflect changes in our world. Our workplaces are changing, and technology is present everywhere, fundamentally changing the work we do. There are some new topics that are now possible to explore with technology, and some standard topics that can be approached in new ways.
A procedure that you do over and over, each time building on the previous stage, is recursive. You'll see recursion used in many different ways throughout this book. In this lesson you'll draw fractal design using a recursive procedure. After you draw the design, you'll work with fractions to examine its parts.
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