Fraction: A number that represents one or more equal parts of a whole
Unit fraction: A fraction in which its numerator is 1 and its denominator is a whole number
Numerator: The number of parts one selects from the whole
Denominator: The number of parts the “whole” is partitioned into
Halves: either of two equal parts into which a whole can be partitioned
Fourths: one or more of four equal parts into which a whole can be partitioned
Sixths: one or more of six equal parts into which a whole can be partitioned
Eighths: one or more of eight equal parts into which a whole can be partitioned
Tenths: one or more of ten equal parts into which a whole can be partitioned
Thirds: one or more of three equal parts into which a whole can be partitioned

Equivalent: having the same value or amount
Compare: to examine in order to note similarities and differences
Unit interval: on a number line, it is the whole that is the interval from 0 to 1, as measured by length
Interval: distance between two points
Inch: customary unit for measuring length
Length: the measure of the greatest dimension of anything measured from end to end
Line Plot: A method of visually displaying a distribution of data values where each data value is shown as a dot or mark above a number line. 