Technology Past & PresentTechnology Past & Present

TechnologyTechnology

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

Technological Eras (or Ages)Technological Eras (or Ages)

Agricultural EraAgricultural Era Stone AgeStone Age Bronze AgeBronze Age Iron AgeIron Age

Industrial AgeIndustrial Age

Information AgeInformation Age

Communication AgeCommunication Age

Stone Age – Up to about 3500 B.C.Stone Age – Up to about 3500 B.C.

Humans traveled in Humans traveled in small nomadic groups.small nomadic groups.

Tools used to help in Tools used to help in tasks were made from tasks were made from stone.stone.

Mastered the use of fire.Mastered the use of fire.

Ex. Stones used to Ex. Stones used to grind corn.grind corn.

Pairs / SharePairs / Share

On your think paper, write down ways On your think paper, write down ways people used stone to help in their daily people used stone to help in their daily tasks.tasks.

Share with your partner.Share with your partner.

On your graphic organizer illustrate an On your graphic organizer illustrate an example of the Stone Age.example of the Stone Age.

Bronze Age – About 3500 to 1000 B.C.Bronze Age – About 3500 to 1000 B.C.

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

Pairs / SharePairs / Share

On your think paper, write down ways On your think paper, write down ways people used metals to help in their daily people used metals to help in their daily tasks.tasks.

Share with your partner.Share with your partner.

On your graphic organizer illustrate an On your graphic organizer illustrate an example of the Bronze Age.example of the Bronze Age.

Iron Age – 1000 to 500 B.C.Iron Age – 1000 to 500 B.C.

With better furnaces With better furnaces smelt iron was smelt iron was developed.developed.Iron-tipped plowsIron-tipped plowsBuilding techniques Building techniques changedchangedBoats became Boats became oceangoing vessels.oceangoing vessels.Road systems Road systems appeared.appeared.

Pairs / SharePairs / Share

On your think paper, write down ways the On your think paper, write down ways the Iron Age improved life.Iron Age improved life.

Share with your partner.Share with your partner.

On your graphic organizer illustrate an On your graphic organizer illustrate an example of the Iron Age.example of the Iron Age.

Industrial Age – 1750 to early Industrial Age – 1750 to early 1900’s1900’s

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

Pairs / SharePairs / Share

On your think paper, write down ways the On your think paper, write down ways the the Industrial Age changed life.the Industrial Age changed life.

Share with your partner.Share with your partner.

On your graphic organizer illustrate an On your graphic organizer illustrate an example of the Industrial Age.example of the Industrial Age.

Information Age – early 1900’s to Information Age – early 1900’s to early 1990’searly 1990’s

Plastics were developedPlastics were developedComputer developed in Computer developed in 1944.1944.Transistors invented Transistors invented in1947.in1947.Manufacturing changedManufacturing changedTravel increasedTravel increasedInformation access and Information access and exchange became exchange became quicker and easierquicker and easier

Pairs / SharePairs / Share

On your think paper, write down ways the On your think paper, write down ways the Information Age changed life.Information Age changed life.

Share with your partner.Share with your partner.

On your graphic organizer illustrate an On your graphic organizer illustrate an example of the Information Age.example of the Information Age.

Communication AgeCommunication Age

Instant, mobile communicationInstant, mobile communication HandheldsHandhelds

PDA’s, BlackberriesPDA’s, Blackberries Cellphones replacing landlinesCellphones replacing landlines

Text messagingText messaging VideophonesVideophones Internet communicationInternet communication

BloggingBlogging

Instant messagingInstant messaging

Internet phonesInternet phones

Pairs / SharePairs / Share

On your think paper, write down ways the On your think paper, write down ways the Communication Age changed life.Communication Age changed life.

Share with your partner.Share with your partner.

On your graphic organizer illustrate an On your graphic organizer illustrate an example of the Communication Age.example of the Communication Age.

Exponential GrowthExponential Growth

Changes coming faster and fasterChanges coming faster and faster

Ideas combined and change increasesIdeas combined and change increases

Ex. If you were given one penny on your Ex. If you were given one penny on your birthday and the amount doubled every birthday and the amount doubled every day by the third day you would have four day by the third day you would have four cents.cents.

ActivityActivity

With a partner figure out how much you With a partner figure out how much you would have at the end of one month if you would have at the end of one month if you were given one penny and it doubled were given one penny and it doubled every day.every day.

Answer: Over $5 million or $5,368,709.12 Answer: Over $5 million or $5,368,709.12 to be exact.to be exact.

Technology’s Rate of ChangeTechnology’s Rate of Change

Moore’s LawMoore’s Law The observation made in 1965 by Gordon Moore, co-The observation made in 1965 by Gordon Moore, co-

founder of founder of IntelIntel, that the number of , that the number of transistorstransistors per per square inch on square inch on integrated circuitsintegrated circuits had doubled every had doubled every year since the integrated circuit was invented. year since the integrated circuit was invented.

Moore predicted that this trend would continue for the Moore predicted that this trend would continue for the foreseeable future. In subsequent years, the pace foreseeable future. In subsequent years, the pace slowed down a bit, but data density has doubled slowed down a bit, but data density has doubled approximately every 18 months.approximately every 18 months.

Round TableRound Table

Discuss in round table the impact Moore’s Discuss in round table the impact Moore’s Law has on us today.Law has on us today.

Be ready to share.Be ready to share.

ActivitiesActivities

Optional small group activity: Technology Optional small group activity: Technology Then, Now and Future worksheet.Then, Now and Future worksheet.

Using the Venn diagram handout, select Using the Venn diagram handout, select one tool of the past and compare it to a one tool of the past and compare it to a tool of the present used for a similar task. tool of the present used for a similar task. Write a paragraph explaining how this Write a paragraph explaining how this technology has increased our capacity.technology has increased our capacity. Ex: Hand sewing / Sewing MachineEx: Hand sewing / Sewing Machine