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Quantify It!

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15 diapositives · 362 Views · Oct 11, 2014

Quantify It!. Introduction to Measurement Scales. Measurement Methods. What are some ways to measure distance? What are some potential problems?. Adapted from http://www.ebibleteacher.com/images/cubit.jpg. Standards (SI). Meter Kilogram Second. http://museum.nist.gov/object.asp?ObjID=37.

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  1. Quantify It! Introduction to Measurement Scales

  2. Measurement Methods • What are some ways to measure distance? • What are some potential problems? Adapted from http://www.ebibleteacher.com/images/cubit.jpg

  3. Standards (SI) • Meter • Kilogram • Second http://museum.nist.gov/object.asp?ObjID=37 http://museum.nist.gov/object.asp?ObjID=22 These units are called standards because they were approved by international treaty.

  4. Measure or Estimate? • We estimate quantities in situations requiring a quick, approximate answer. • We measure quantities when an exact answer is necessary. http://rockyjohnson.blogspot.com/2007/04/framing-house.html http://www.unlawyer.net/photos/?a=supermarket-shopping&i=194

  5. Estimating Distances • However, we don't estimate distances by rounding! • In order to estimate distances, we must understand length scales. • Length scales are standardized in English and Metric units.

  6. Miles, Kilometers http://reference.aol.com/atlas http://www.msnbc.msn.com/id/7491948/

  7. Meters http://gizmodo.com/5037271/water-cube-olympic-pool-not-responsible-for-michael-phelpss-aquaman-superpowers

  8. Yards http://slashdot.org/article.pl?sid=07/11/13/2328256

  9. Feet http://philadelphia.phillies.mlb.com/phi/ballpark/seating_pricing.jsp http://kissoflife.wordpress.com/tag/beijing-olympics/

  10. Inches, Centimeters, Millimeters • Inches, Centimeters • Millimeters http://www.okoffice.com.au/product.asp?pID=36273&cID=1420 http://commons.wikimedia.org/wiki/File:Mechanical_pencil_lead_spilling_out_051907.jpg

  11. Reading a Ruler A metric ruler is divided into centimeters and millimeters. There are 10 mm in 1 cm. An English ruler marked in 8ths. Every mark is 1/8th of an inch. An English ruler marked in 16ths. Every mark is 1/16th of an inch. http://www.onlineconversion.com/faq_05.htm

  12. Reading a Ruler When marking down a distance from a ruler, mark the whole inch, followed by a space, then the fraction of an inch. http://www.onlineconversion.com/faq_05.htm

  13. In your notebook, estimate: • Length of whiteboard (in meters) • Height of your desk chair (in feet) • Length of the calculator (in inches) • Width of whiteboard ledge (in mm)

  14. Check the answers! Length of whiteboard (in meters): Height of your desk chair (in feet): Length of the calculator (in inches): Width of whiteboard ledge (in mm):

  15. Units and Abbreviations