" We established this web site to support our "Dragonfly" book, first published in 2002. When the book was current, we established web pages to support each of the book's chapters, and included a host of links and other web resources for teachers and students.
Because the book was last published in 2008, we will no longer maintain or update the site. However, we will keep its pages on line for the next few years to help support those using older editions of our books. "
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