Module 2 - Course 1 Carnegie Math MSMB Glossary

Module 2, Course 1

additive reasoning

A method focusing on addition and subtraction for comparisons.

benchmark percents

A benchmark percent is a commonly used percent, such as 1%, 5%, 10%, 25%, 50%, and 100%.

convert

To convert a measurement means to change it to an equivalent measurement in different units.

double number line

A model made up of two number lines used to represent the ratio between two quantities.

equivalent ratios

Ratios that represent the same part-to-part or part-to-whole relationship.

linear relationship

A set of points on a coordinate plane that forms a straight line.

multiplicative inverse

The number that when multiplied by a given number gives 1.

multiplicative reasoning

Focuses on the use of multiplication and division.

percent

A part-to-whole ratio where the whole is equal to 100.

proportion

An equation that states two ratios are equal.

qualitative reasoning

Comparison of ratios without measuring or counting quantities.

quantitative reasoning

Comparison of ratios by measuring or counting quantities.

rate

A ratio that compares two quantities measured in different units.

ratio

A comparison of two quantities using division.

scaling down

Dividing both parts of a ratio by a factor greater than 1.

scaling up

Multiplying both parts of a ratio by a factor greater than 1.

tape diagram

Illustrates number relationships using rectangles to represent ratio parts.

unit rate

A unit rate is a comparison of two different measurements in which the numerator or denominator has a value of one unit.