george washington: surveyor. for the history channel’s video on george washington as a surveyor,...
TRANSCRIPT
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George Washington: Surveyor
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For the History Channel’s video on George Washington as a surveyor,
click below.
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George Washington created this survey map
when he was16. The map shows his half-brother
Lawrence’s turnip garden
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Drawn by George Washington in 1793 – These are all of Washington’s Farms
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Tools of the Surveyor
• A compass used to map the land
• A Gunter’s chain used to measure the land
• Stakes with surveyors flags used to mark the measured locations
• A protractor used to measure angles
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Surveying the Land
7.92 inchesflag
Link
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Perimeter = Sum of all sides10 + 20 + 10 + 20 = 60 feet
A B
DC
20 feet
10 f
eet
20 feet
10 f
eet
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Area = Base x HeightA B
D C20 feet
10 f
eet
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Does It Measure Up?• Now its your turn…• In small groups, the class will be surveying an
area of the playground. – To do this, each group will need two pieces of
sidewalk chalk, a Gunter’s chain, a pencil, and a copy of the “Does It Measure Up?” worksheet.
• Sketch a picture of the area that includes landmarks such as the slide, swing set, etc.
• Measure the distance between the boundary markers determined by your surveyor
• Once you have completed the measurements, your group will be computing the area and the perimeter of the land you surveyed.