October 7, 2009

U2-L3

DRILL

1. Using your “Employment by Sectors” graph, in approximately what year did industrial employment reach its peak?

2. Based on the graph, what has been the general trend in employment in the agricultural sector?

3. What are two ways that using a rubric can improve your performance in class?

1. 1950 2. Down

The History of Technology

• Knowledge of the history of technology helps people understand the world around them by seeing how people of all times and places have increased their capability by using their unique skills to innovate, improvise, and invent.

U2-L3

• People of all times and places have increased their capability by?– Innovating – to do something in a new way;

to make changes (refer to handout).– Improvising – to make or fabricate out of

what is conveniently at hand– Inventing – to devise, for the first time, by

thinking• What role does technology play in the way

people live, work, and produce things?

HISTORY and TECHNOLOGY

U2-L3

• Use of fire• Unpolished stone tools• Sculpture• Musical instruments• Burial of the dead• Cave dwellings• Cave paintings• Stone axes• Bone needles• Hearth sites

Temporary site of ancient hunters. Stone implements used as tools.

HOW DID IT CHANGE LIVES?

U2-L3

PALEOLITHIC AGE

• Microliths• Sails• Wheel and axle• Leatherwork• Basketry• Fishing tackle• Stone axes• Canoes• Bows• Domesticated animals• Stone circles• Sickles

Use of natural materials to create baskets

HOW DID IT CHANGE LIVES?

U2-L3

MESOLITHIC AGE

HOW DID IT CHANGE LIVES?

U2-L3

NEOLITHIC AGE

1. Stone and mud brick dwellings

2. Pottery

3. Polished stone tools

4. Spinning and weaving tools

5. Wooden and stone plows

Painted pottery basin

HOW DID IT CHANGE LIVES?

U2-L3

BRONZE AGE

• Metal pots and pans• Pottery wheel• Chariot• Pulley• Metal jewelry• Metal tools• Metal weapons

Bronze Age palstave axe and spear.

HOW DID IT CHANGE LIVES?

U2-L3

IRON AGE

• Block and tackle• Pump• Lathe• Iron dagger• Iron chisel• Iron axe• Iron spearhead

An illustration of a typical Iron Age farmhouse

HOW DID IT CHANGE LIVES?

U2-L3

MIDDLE AGES• Waterwheel• Windmill• Cannon• Mechanical clock• Wheeled plow• Horseshoes• Stirrups• Crank• Compass• Ocean-going ships

Waterwheel used to power machines

HOW DID IT CHANGE LIVES?

U2-L3

RENAISSANCE

• Telescope• Microscope• Thermometer• Barometer• Printing press• Rifle This is the telescope that Galileo

created in 1601

HOW DID IT CHANGE LIVES?

U2-L3

INDUSTRIAL AGE

• Steam engine• Electricity• Automobile• Airplane• Radio• Television• Telephone• Rocket Rockets sending satellites to orbit

Earth.

HOW DID IT CHANGE LIVES?

U2-L3

INFORMATION AGE

• Transistor• Integrated circuit• Computer• Communication

satellites• Digital photography• Artificial heart• Nuclear power plants• Space shuttle

Artificial Heart

U2-L3

HOMEWORK

• Interview an older family member about the most significant technological advancement in their lives. Why do they say this is the most important technological advancement? What would life be like without it?