__Pre-Class Assignment 2A/2B__

Read through sections 2A and 2B in your book and answer the following questions.

- Define:

- a) unit –

- b) unit analysis –

- Why do you think we need units when keeping track of real-life numbers?

- What does the word ‘per’ imply in mathematical problems?

- What does the word ‘of’ imply in mathematical problems?

- Give one example from the US customary system and the international metric system for the measurements in the following chart.

MEASURE | US CUSTOMARY SYSTEM | INTERNATIONAL METRIC SYSTEM |

LENGTH | ||

WEIGHT | ||

VOLUME |

- List 2 units/rates that you personally come across in every day life (ie. dollars per pound)

a)

b)

- Do you think that population density is an important part of making the decision about where you want to live? Why or why not?