4th Grade Math Terms for PSSA

the distance around a two-dimensional figure

• perimeter
• area
• length
• width

a fraction in which the numerator is equal to or greater than the denominator

• mixed numbers
• improper fractions
• equivalent fractions
• unit fractions

the system of measurement used in the United States to measure length, capacity, and weight.

• metric system of measurement
• global system of measurement
• ancient system of measurement
• customary system of measurement

a triangle with three angles that each measure less than 90 degrees.

• acute triangle
• obtuse triangle
• right triangle
• equivalent triangle

a figure formed by two rays that share the same endpoint.

• angle
• ray
• shape
• circle

the amount of space that a figure covers.

• length
• width
• perimeter
• area

a way to display data using horizontal or vertical bars

• bar graph
• line plot
• pictograph
• line graph

an angle with a measure greater than 0 degrees but less than 90 degrees.

• obtuse angle
• acute angle
• straight angle
• reflex angle

an object that can be used to compare and estimate a measurement.

• level
• benchmark
• tally
• spot

the amount a container can hold.

• area
• perimeter
• length
• capacity