1. Tess Klemer & Steph Stumvoll The English System

2. What does this map mean to you?

3. History of the English System In the past, common objects were used for measurement Volume was determined by filling containers with carob seeds This is why we call the size of a gem a “carat” 12 is the base number for the English System The number was decided by the Romans

4. History of the English System To determine different lengths, the English system used body parts or handy objects One yard = the distance from an adult’s shoulder to the fingertips on the opposite outstretched arm One foot = the length of an adult’s foot One inch = grains of barley laid end to end King Henry the VII established the universal measurements used today

5. Length Abbreviations in parentheses Units of Length Unit Relation to other measurements 12 inches (in.)1 foot (ft) 3 feet (ft)1 yard (yd) 36 inches (in.)1 yard (yd) 5,280 feet (ft)1 mile (mi) 1,760 yards (yd)1 mile (mi)

6. Capacity: the amount of liquid that can be held inside of a defined space; also called volume

7. More Volume Liquid is often measured using both the English and Metric systems There are 231 cubic inches in 1 gallon English System 4 quarts = 1 gallon 2 pints = 1 quart 2 cups = 1 pint

9. Weight The English System uses pounds and ounces to measure weight 1 pound (lb) = 16 (oz) 2000 pounds (lbs) = 1 ton (T) Pounds and tons are used to weigh larger units

10. Weight Continued Drams and grains measure smaller units 1 dram = 27.34 grains 1 ounce = 16 drams Weight was originally based on the weight of a grain of barley

11. There are two types of measure for weight in the English System Avoirdupois – for everyday materials Troy – for precious metals

12. Temperature The English System uses Fahrenheit for temperature Named after Gabriel Fahrenheit Labeled as ____°F United States is one of few countries that uses the Fahrenheit system Others are Belize, Burma and Liberia

13. Fahrenheit Conversions °C = (°F-32) ÷ 1.8 °F = (°C x 1.8) + 32 Freezing point = 32°F Boiling point = 212°F Body temperature = 98.6°F

14. Homework Problems Page 668-671 Questions 1,2,8,9,10,11, & 20

15. Sources http://standards.nasa.gov/history_metric.pdf http://www.unc.edu/~rowlett/units/custom.html Mathematics for Elementary Teachers 9 th Ed. Guiding Children’s Learning of Mathematics 12 th Ed.

16. Picture Sources http://home.clara.net/brianp/weights.html http://fisherpreciousmetals.com/articles-news/ http://en.wikipedia.org/wiki/Fruit http://school.discoveryeducation.com/clipart/clip/inchworm.html http://www.joeydevilla.com/2008/08/13/countries-that-dont-use-the- metric-system/ http://www.joeydevilla.com/2008/08/13/countries-that-dont-use-the- metric-system/