Shapard, R. 1996. A grand experiment brings spring floods to the canyon. Amer City Country 111:26
Smith VK, Osborne LL. 1996. Do contingent valuation estimates pass a Scope test? A meta analysis. J Envir Econ Mgmt 31:287–301.
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As of 2013, the National Science Education Standards have been replaced by the Next Generation Science Standards (NGSS), available as a print book, free PDF download, and online with our OpenBook platform.
The NGSS offer a detailed description of the key scientific ideas and practices that all students should learn by the time they graduate from high school. The standards are based largely on the 2011 National Research Council report A Framework for K-12 Science Education: Practices, Crosscutting Concepts, and Core Ideas.