Technology Past

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Technology Past Present
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Technology

• Using knowledge to develop products and systems
  that satisfy needs, solve problems, and increase
  our capabilities.

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Technological Eras (or Ages)

• Agricultural Era
• Stone Age
• Bronze Age
• Iron Age
• Industrial Age
• Information Age
• Communication Age

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Stone Age Up to about 3500 B.C.

• Humans traveled in small nomadic groups.
• Tools used to help in tasks were made from stone.
• Mastered the use of fire.
• Ex. Stones used to grind corn.

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Pairs / Share

• On your think paper, write down ways people used
  stone to help in their daily tasks.
• Share with your partner.
• On your graphic organizer illustrate an example
  of the Stone Age.

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Bronze Age About 3500 to 1000 B.C.

• Plants grown from seed.
• Yarn spun and fabric woven.
• Soft metals were hammered, heated and molded.
• Irrigation systems were developed.
• Carts with wheels appeared.

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Pairs / Share

• On your think paper, write down ways people used
  metals to help in their daily tasks.
• Share with your partner.
• On your graphic organizer illustrate an example
  of the Bronze Age.

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Iron Age 1000 to 500 B.C.

• With better furnaces smelt iron was developed.
• Iron-tipped plows
• Building techniques changed
• Boats became oceangoing vessels.
• Road systems appeared.

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Pairs / Share

• On your think paper, write down ways the Iron Age
  improved life.
• Share with your partner.
• On your graphic organizer illustrate an example
  of the Iron Age.

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Industrial Age 1750 to early 1900s

• New machines and sources of power were developed.
• Countries changed from rural to urban.
• Textile industry was born.
• New transportation and communication.
• Labor Unions were born.

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Pairs / Share

• On your think paper, write down ways the the
  Industrial Age changed life.
• Share with your partner.
• On your graphic organizer illustrate an example
  of the Industrial Age.

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Information Age early 1900s to early 1990s

• Plastics were developed
• Computer developed in 1944.
• Transistors invented in1947.
• Manufacturing changed
• Travel increased
• Information access and exchange became quicker
  and easier

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Pairs / Share

• On your think paper, write down ways the
  Information Age changed life.
• Share with your partner.
• On your graphic organizer illustrate an example
  of the Information Age.

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Communication Age

• Instant, mobile communication
• Handhelds
• PDAs, Blackberries
• Cellphones replacing landlines
• Text messaging
• Videophones
• Internet communication
• Blogging
• Instant messaging
• Internet phones

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Pairs / Share

• On your think paper, write down ways the
  Communication Age changed life.
• Share with your partner.
• On your graphic organizer illustrate an example
  of the Communication Age.

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Exponential Growth

• Changes coming faster and faster
• Ideas combined and change increases
• Ex. If you were given one penny on your birthday
  and the amount doubled every day by the third day
  you would have four cents.

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Activity

• With a partner figure out how much you would have
  at the end of one month if you were given one
  penny and it doubled every day.
• Answer Over 5 million or 5,368,709.12 to be
  exact.

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Technologys Rate of Change

• Moores Law
• The observation made in 1965 by Gordon Moore,
  co-founder of Intel, that the number of
  transistors per square inch on integrated
  circuits had doubled every year since the
  integrated circuit was invented.
• Moore predicted that this trend would continue
  for the foreseeable future. In subsequent years,
  the pace slowed down a bit, but data density has
  doubled approximately every 18 months.

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Round Table

• Discuss in round table the impact Moores Law has
  on us today.
• Be ready to share.

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Activities

• Optional small group activity Technology Then,
  Now and Future worksheet.
• Using the Venn diagram handout, select one tool
  of the past and compare it to a tool of the
  present used for a similar task. Write a
  paragraph explaining how this technology has
  increased our capacity.
• Ex Hand sewing / Sewing Machine