Marzano's 3rd Grade Math Vocabulary

To break or split into equal parts; to determine how many times one number goes into another number.

• Round
• Subtract
• Divide

A system of measurement based on tens.

• Inches
• Metric System
• Miles

The total number of square units needed to COVER a two dimensional (flat) surface.

• Perimeter
• Area

Numbers we can multiply together to get another number.

• Factors
• Product

The distance in linear units AROUND a two-dimensional (flat) shape.

• Perimeter
• Area

A step-by-step procedure for computing that gives the correct result in every case when the steps are carried out correctly.

• Rounding
• Algorithm
• Difference

A fraction in which the numerator is GREATER than the denominator.

• Equivalent Fraction
• Unit Fraction
• Improper Fraction

An arrangement consisting of equal rows and columns.

• Array
• Factor
• Product

A number greater than 1 expressed as a whole number plus a fraction whose value is less than 1.

• Unit Fraction
• Equivalent Fraction
• Mixed Number

A figure with all RIGHT angles and only straight sides since they only have right angles.

• Trapezoid
• Rhombus
• Rectilinear Shape