adjustments will have to be made. No single feasible policy adjustment is likely to be an acceptable or a sufficient response to the challenge and opportunity of population aging. An aging society need not have lower living standards, slower growth in innovation and productivity, or inefficiently high tax rates. But delaying decisions on how to adapt to our aging demographic structure will make the transition more difficult and costly.
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2 Overview ."
Aging and the Macroeconomy: Long-Term Implications of an Older Population . Washington, DC: The National Academies Press,
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As of 2013, the National Science Education Standards have been replaced by the Next Generation Science Standards (NGSS), available as a print book, free PDF download, and online with our OpenBook platform.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.