**Additional Materials**

**Materials Required**

**Estimated Time Needed**

*(Times are approximate and will depend on the needs of the students.)*

Sorting Equations and Identities

Academic

Vocabulary

Vocabulary

Mathematical sentence that compares two expressions linked by an equals sign.

A limited (as opposed to infinite) combination of symbols that are formed correctly according to the rules that apply to a particular mathematic context.

A diagram that exhibits a relationship, often functional, between two sets of numbers as a set of points having coordinates determined by the relationship; also called plot.

An equation that is always true.

Natural numbers and their negatives, such as … -1, 0, 1, 2, 3 …; Integers are not expressed as fractions or with decimal points.

An equation in which one or more of the terms is squared but raised to no higher power, having the general form ax² + bx + c = 0, where a, b, and c are constants. When graphed, this relationship is represented by a parabola (U-shaped curve).

Letters that represent numbers in algebraic expressions; called variables because the numbers they represent can vary; one or more numbers can be substituted for the letters in an algebraic expression; also referred to as the unknown.