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Creating American Borders

30-second animation of the changes in U.S. historical county boundaries, 1629 - 2000. Historical state and territorial boundaries are also displayed from 178...

Via Seth Dixon, Susan Grigsby @sksgrigsby
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Jesse Olsen's comment, March 16, 2013 1:04 PM
Whooooaaaaaaa!!!!
Betty Klug's curator insight, April 27, 2013 3:50 PM

I love animation maps.  Great for getting students interested in learning.

Samuel D'Amore's curator insight, December 14, 2014 6:36 PM

This video does a fantastic job of showing how the United States has expanded and grown since its original 13 colonies. While many today might imagine that our nation was simply always this size in fact over many years of colonization, land purchases and land grabs America has eventually become what it is today.

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TODALSIGS

TODALSIGS | Thinking Geographically | Scoop.it

TODALSIGS is an acronym for remembering the most basic elements of a good map.  This interactive briefly explains what each of the letters represents and how it is connected to map-making.  If this particular introduction is either too advanced or too basic for your students, simply run an internet search for the term TODALSIGS to find many other lesson plans and resources that might be more applicable to your institution (including this example-rich slideshow).  


Via Seth Dixon
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Seth Dixon's curator insight, September 13, 2013 2:27 PM

TODALSIGS is an acronym for remembering the most basic elements of a good map.  This interactive briefly explains what each of the letters represents and how it is connected to map-making.  If this particular introduction is either too advanced or too basic for your students, simply run an internet search for the term TODALSIGS to find many other lesson plans and resources that might be more applicable to your institution (including this example-rich slideshow).