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       USII.5a Early 20th Century -Transportation, Communication, Electrification  | 
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      The student will demonstrate knowledge of 
      the social, economic, and technological changes of the early twentieth 
      century by  a) explaining how developments in transportation (including the use of the automobile), communication, and electrification changed American life.  | 
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       How was social and economic life in the early twentieth century different from that of the late nineteenth century?  | 
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       Technology extended progress into all areas of American life, including neglected rural areas.  | 
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Results of 
      improved transportation brought by affordable
      automobiles • 
      Greater mobility • Creation of jobs • Growth of transportation-related industries (road construction, oil, steel, automobile) • Movement to suburban areas 
      Invention of the airplane 
 
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      • Development of the radio 
      (role of Guglielmo Marconi)  
      and broadcast industry (role of David Sarnoff)• Development of the movies Ways electrification changed American life • Labor-saving products (e.g., washing machines, electric stoves, water pumps)  • Electric 
      lightingRead about Edison's Light Bulb Watch one of Edison's Kinetiscope Movies 
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