GKE Math

Algebraic Expressions

Distributive Property

a number in front of a group of terms will multiply all terms in the grouping individually

Expression

Numbers, symbols, and operators grouped together to show the value of something. Note that it differs from an equation because there is no equal sign and therefore cannot be solved, only simplified

Term

Each part of an expression that is separated by a + or - sign.

Coefficient

A number that multiplies a variable

Quadratic Expression

Any mathematical expression whose power or degree is two

Constant

a number without a variable; value does not change (stays constant)

Factored

Separated into factors or divisors that, when multiplied together, yield the original number

Double Distribution

Distributing terms through two sets of parentheses. Known as FOIL when used on two sets of binomials in parentheses

Variable (Math)

A letter or non-numeric symbol that represents an unknown value

Order of Operations

PEMDAS: the set order in which multi-step equations must be solved: Parenthesis, Exponents, Multiplication and Division (left to right), Addition and Subtraction (left to right)

Like Terms

terms with the same variable and exponent combination

Combine Like Terms

method of simplifying an algebraic expression by adding or subtracting the coefficients of like terms

Dissecting (Math)

writing numbers or expressions in expanded form

Distribution (mathematics)

Use of the distributive property where a number in front of a group of terms will multiply all terms in the grouping individually

Linear Expression

An expression that does not contain any exponents

Scale Drawings

pictures of an object drawn smaller (or larger) than they are in real life

Proportion

the relative size of elements in a design

Perimeter

the distance around the outside of a figure

Area

the amount of surface inside of a figure

Volume

measure of the total three-dimensional space contained inside an object

Net

a two-dimensional representation or pattern for a three-dimensional object

Total Surface Area

The sum of all of the areas of all faces of a solid object

Lateral Surface Area

The sum of the areas of all faces excluding the base(s) of a solid object

Surface Area

The area of the outside surface of a three-dimensional object