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    Roosevelt Middle School Technology Education Technology Eras
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    Primitive Era (600,000 b.c.) The First Technology: Making Tools? Wood Stone Animal bones Discovered how to make fire Families were small (life expectancy is  very low)
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    Agricultural Era (8,000 b.c.) Raising crops and animals Larger food supply leads to larger families Civilizations started to be formed Ruralization Natural resources started being used Wind  Water  Gravity
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    Industrial Era (1700-1900) Development of steam powered machinery Factories are formed Mass production of goods (Automobile) Assembly line (interchangeable parts) Pollution!!!!! (new technologies create new  problems ) New roads, waterways, and railroads Urbanization (cities are forming)
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    Informational Era (1940-??) Transistors Electronic equipment Big and expensive
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