20 terms

Module 1 Vocabulary

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ratio
a comparison of two quantities by division
rate
a ratio comparing two quantities with different kinds of units
unit rate
a rate that is simplified so that it has a denominator of 1
value of a ratio
ex: for the ratio A:B, the value of the ratio is the quotient A divided by B
equivalent ratios
ratios that express the same relationship between two quantities; ratios that have the same value
percent
a ratio that compares a number to 100; percent of a quantity is a rate per 100
associated ratios
ratios that are related in some way
double number line
a number line that shows a comparison of two sets of numbers; shows equivalent ratios
ratio table
a table listing pairs of numbers that form equivalent ratios
convert
to change the form of a ratio without changing its value
tape diagram
visual models that use rectangles to represent parts of a ratio
equation
a mathematical sentence showing that two expressions are equal
coordinate plane
a plane in which a horizontal number line and a vertical number line intersect at their zero point
x-axis
the horizontal line of the two perpendicular number lines in a coordinate plane
y-axis
the vertical line of the two perpendicular number lines in a coordinate plane
ordered pair
a pair of numbers used to locate a point on the coordinate plane
origin
the point of intersection of the x-axis and y-axis on a coordinate plane
part to part ratio
an example of this ratio is comparing red numbers to blue numbers
part to whole ratio
an example of this ratio is comparing green blocks to the total amount of blocks
simplifying
dividing each number in a ratio by the GCF
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