# Module 1

• Module 1: Ratios and Proportional Relationships

-          Relates to Unit 2 in the Buckle Down Page

o   Practice test: page 87 - 92

Concepts:

-          Ratios and Rates

-          Unit Rates / Unit Prices / Constant of Proportionality (C.O.P.)

-          Equivalent Ratios

-          Identifying Proportional and Non-proportional relationships

-          Using Table/graph/equations

-          Scale Drawing /  Scale Factor

Vocabulary

Words:

Ratio, Rate, Unit Rate/Unit Price, Proportion/Proportional, Constant of Proportionality (C.O.P.), Scale Drawing and Scale Factor.

Definitions:

Ratio- Comparison of 2 numbers expressed as a fraction in the simplest form

Rate- a ratio in which the terms have different units

Unit Rate- A rate that has the 2nd quantity (bottom of the fraction) = to 1

Unit price – a price for one unit of a product.

Proportion – states that two ratios are equal.

Constant of Proportionality – (C.O.P.) – unit rate

Previous Skills:

Converting decimals/fractions/percents