This classic motivator of math thinking is now updated with a downloadable student booklet containing additional Fibonacci and golden ratio activities related to the stock market, fractals, algebra, and more! The book also includes helpful Web sites related to the book's content. Let this geographically alive mystery tour integrate math into art, science, philosophy, history, social studies, and language arts. The use of the calculator, geometric construction, metric measurement, problem solving, formulating results, and making inferences is woven throughout the book. A Mathematical Mystery Tour has been used by thousands of students and has inspired adults to a greater appreciation of the secret number language of nature. It is multidisciplinary, visual, and hands-on, but requires deep math thinking. The activities are reproducible and are accompanied with teacher pages that give answers, notes, and activity extensions. Your purchase of this book entitles you to download the supplemental Mathematical Mystery Tour Student Newspaper for use in your classroom. Multiple copies of this supplemental student guide may printed for use with your students. Grades 5–12