section 5.3.3

Mathematical models

• describe scientific phenomena

• can evaluate cost

• require a calculator

• are easier to build than physical models

Engineers use mathematics and science to

• understand the world

• solve problems

• build models

• design a process

An example of a mathematical model is

• the budget for product development

• drawings used to design a product

• the engineering design process

• rate of the flow of water through a hose

Contemporary global societal issues

• Drought in the Southwest United States.

• Lack of drinkable water in many nations.

• Aging bridges that are prone to collapse.

• Lack of accessible and reliable public transportation.

Contemporary global societal issues

• Need for renewable energy sources.

• Children and others disabled by landmines and other weapons.

• Environmental pollution from oil and chemical spills

• Jeff Goldblum