{"product_id":"glorious-golden-ratio-9781616144234","title":"Glorious Golden Ratio","description":"What exactly is the Golden Ratio? How was it discovered? Where is it found? These questions and more are thoroughly explained in this engaging tour of one of mathematics' most interesting phenomena. The authors trace the appearance of the Golden Ratio throughout history, demonstrate a variety of ingenious techniques used to construct it, and illustrate the many surprising geometric figures in which the Golden Ratio is embedded. Requiring no more than an elementary knowledge of geometry and algebra, the authors give readers a new appreciation of the indispensable qualities and inherent beauty of mathematics.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAbout the Author\u003c\/b\u003e\u003cbr\u003e\u003cp\u003e\u003cb\u003eAlfred S. Posamentier\u003c\/b\u003e is dean of the School of Education and professor of mathematics education at Mercy College in Dobbs Ferry, New York. Previously, he had the same positions at the City College of the City University of New York for forty years. He has published over fifty-five books in the area of mathematics and mathematics education, including \u003ci\u003eThe Fabulous Fibonacci Numbers \u003c\/i\u003e(with Ingmar Lehmann). \u003c\/p\u003e\u003cp\u003e\u003c\/p\u003e\u003cb\u003eIngmar Lehmann\u003c\/b\u003e is retired from the mathematics faculty at Humboldt University in Berlin. For many years he led the Berlin Mathematics Student Society for gifted secondary-school students, with which he is still closely engaged today. He is the coauthor with Alfred S. Posamentier of \u003ci\u003eThe Secrets of Triangles\u003c\/i\u003e, \u003ci\u003eThe Glorious Golden Ratio\u003c\/i\u003e, and three other books.\u003cbr\u003e","brand":"Prometheus Books","offers":[{"title":"Default Title","offer_id":51811719086354,"sku":"9781616144234","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_13e9ef1b-4a6e-4c2e-bbd7-a32f9e258fad.jpg?v=1766488378","url":"https:\/\/surprise-castle.myshopify.com\/products\/glorious-golden-ratio-9781616144234","provider":"Surprise Castle","version":"1.0","type":"link"}