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Why use Web 2.0 tools in science and math classes? The primary reason is they facilitate access to input and interaction with content through reading, writing, listening, and speaking. These tools offer enormous advantages for science and math teachers, in terms of helping their students learn using Web 2.0 tools. For example: * Most of these tools can be edited from any computer connected to the Internet. Teachers can add, edit and delete information even during class time. * Students learn how to use these tools for academic purposes and, at the same time, can transfer their use to their personal lives and future professional careers. * RSS feeds allow students to access all the desired research information on one page. * Students learn to be autonomous in their learning process.

Published 2012. "Spherical trigonometry was at the heart of astronomy and ocean-going navigation for two millennia. The discipline was a mainstay of mathematics education for centuries, and it was a standard subject in high schools until the 1950s. Today, however, it is rarely taught. Heavenly Mathematics traces the rich history of this forgotten art, revealing how the cultures of classical Greece, medieval Islam, and the modern West used spherical trigonometry to chart the heavens and the Earth. Glen Van Brummelen explores this exquisite branch of mathematics and its role in ancient astronomy, geography, and cartography; Islamic religious rituals; celestial navigation; polyhedra; stereographic projection; and more. He conveys the sheer beauty of spherical trigonometry, providing readers with a new appreciation for its elegant proofs and often surprising conclusions. Heavenly Mathematics is illustrated throughout with stunning historical images and informative drawings and diagrams that have been used to teach the subject in the past. This unique compendium also features easy-to-use appendixes as well as exercises at the end of each chapter that originally appeared in textbooks from the eighteenth to the early twentieth centuries."