Glossary
arrayAn arrangement of objects in rows and columns. Each column must contain the same number of objects as the other columns, and each row must have the same number of objects as the other rows.
a third
One piece of a shape split into 3 pieces that are the same size.
A third of the rectangle is shaded.
bar graph
centimeter
A length unit in the metric measurement system. There are 100 centimeters in a meter.
column
compose
data
Example: If you have a box of colored pencils, then the lengths and colors of each of the pencils are data about the pencils in the box.
decompose
even
expanded form
A specific way of writing a number as a sum of hundreds, tens, and ones.
Expanded form writes a number as a sum of the value of each digit. Example: 482 written in expanded form is \(400 + 80 + 2\) .
face
foot
A length unit in the U.S. customary measurement system.
There are 12 inches in a foot.
hexagon
A shape with 6 sides and 6 corners.
inch
A length unit in the U.S. customary measurement system.
There are 12 inches in a foot.
line plot
meter
A length unit in the metric measurement system.
There are 100 centimeters in a meter.
number line
A diagram that represents numbers as lengths from 0 using equally spaced tick marks or points.
odd
pentagon
picture graph
quadrilateral
row
In an array, a row goes side to side.
thirds
The pieces created when a shape is split into 3 pieces that are the same size.
This circle is split into thirds.