Ratio
A relationship in which for every x units of of one quantity there are y units of another quantity
Equivelent ratios
Ratios that express the same relationship
Terms
The quantities x and y
Part-to-part
Represent part of the whole being compared to one another
Part-to-whole
Compares a part to the whole
WKU Chart
A chart that lists what is known, what is unknown, and the units in a problem.
Equation
A mathematical statement that shows two equations are equal using an equal sign.
Expression
A mathematical phrase made of numbers, variables, and operations, without an equal sign.
Variable
A symbol, usually a letter, that represents an unknown number
Bar Diagram
A visual model that uses bars to represent quantities and their relationships