(See related pages)
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| http://standards.nctm.org/document/chapter3/index.htm | ||
| This is the standards chapter in the Principles and Standards for School Mathematics of the National Council of Teachers of Mathematics. Select Measurement from the left column for across-the-grades standards. For specific grade level standards select Pre-K - 2, 3 - 5, or 6 - 8, from the top row. ( http://standards.nctm.org/document/chapter3/index.htm ) | ||
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| http://physics.nist.gov/cuu/Units/index.html | ||
| Historical background and definitions of the metric system (International System of Units). ( http://physics.nist.gov/cuu/Units/index.html ) | ||
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