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2. Investigations in Numbers, Data, and Space - Wikipedia

   en.wikipedia.org/wiki/Investigations_in_Numbers...

   Investigations was developed between 1990 and 1998. It was just one of a number of reform mathematics curricula initially funded by a National Science Foundation grant. The goals of the project raised opposition to the curriculum from critics (both parents and mathematics teachers) who objected to the emphasis on conceptual learning instead of instruction in more recognized specific methods ...

3. Subtraction - Wikipedia

   en.wikipedia.org/wiki/Subtraction

   In what is known in the United States as traditional mathematics, a specific process is taught to students at the end of the 1st year (or during the 2nd year) for use with multi-digit whole numbers, and is extended in either the fourth or fifth grade to include decimal representations of fractional numbers.

4. Conversion of units - Wikipedia

   en.wikipedia.org/wiki/Conversion_of_units

   Conversion of units is the conversion of the unit of measurement in which a quantity is expressed, typically through a multiplicative conversion factor that changes the unit without changing the quantity. This is also often loosely taken to include replacement of a quantity with a corresponding quantity that describes the same physical property.

5. Unit of measurement - Wikipedia

   en.wikipedia.org/wiki/Unit_of_measurement

   The former Weights and Measures office in Seven Sisters, London Units of measurement, Palazzo della Ragione, Padua. A unit of measurement, or unit of measure, is a definite magnitude of a quantity, defined and adopted by convention or by law, that is used as a standard for measurement of the same kind of quantity. [1]

6. How Trump is banking on 18th-century laws for his border and ...

   www.aol.com/trump-banking-18th-century-laws...

   President-elect Donald Trump is preparing to dust off a series of centuries-old laws and legal theories to drive his first-year agenda – particularly on the border and birthright citizenship ...

7. American ski racer Lindsey Vonn is picking up speed in her ...

   www.aol.com/american-ski-racer-lindsey-vonn...

   Word on the mountain has it that Lindsey Vonn is still fast through a downhill course, even at 40 years old. On a frigid Friday morning, Vonn darted through the shadows along the speed course at ...