Social Sciences and History / Unit 11 SSH 1034 short lesson, about 20 seconds
Boundaries: Physical, Geometric, Ethnic
Captions available
The idea
A physical boundary follows a natural feature, a river, mountain range or lake. A geometric boundary follows a straight line and may coincide with a line of latitude or longitude. An ethnic boundary encompasses a particular ethnic group.
In practice
The forty-ninth parallel; the Rio Grande; a language line.
Where people slip
The outcome asks boundary types and how disputes develop.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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