top of page

256

terms • Algebra 1 & Geometry

Math Vocabulary

Every term, the visual way. Each word comes with examples, a non-example, and often a short video—so students meet a concept by seeing it, not memorizing it. Find a term, project it, and let the noticing begin.

Visual examples

Many have videos

Filter by grade & unit

A 5-minute routine

Introduce Any Term

Don’t lead with the definition—lead with the visual. Show the examples and non-example before the meaning, and let students build the word themselves.

1

Show, don’t define

Project the term with its examples and non-example. Hide the definition.

2

Notice & wonder

Ask: what do you notice? What makes the examples different from the non-example?

3

Describe it

Students try to put the meaning into their own words—then discuss as a class.

4

Reveal the definition

Now show the real definition. Play the video to lock it in.

Term

Parabola

Video

Example

Example

Non-Example

The Reveal

A parabola is the U-shaped curve that graphs a quadratic function.

Showing 12 of 256 terms

Solution Set (Systems of Linear Inequalities)

The set of points that satisfy all inequalities in a system.

Algebra 1

Open term →

Square

A quadrilateral with four congruent sides and four right angles.

Geometry

Open term →

Square Root

A number that, when multiplied by itself, gives the original number.

Algebra 1

Open term →

Standard Form (Linear Equation)

A linear equation written as Ax + By = C.

Algebra 1, Geometry

Open term →

Standard Form (Quadratic Functions)

A quadratic function written as y = ax² + bx + c.

Algebra 1

Open term →

Straight Angle

An angle that measures exactly 180°.

Geometry

Open term →

Substitution Method (Systems of Equations)

Solving a system by replacing one variable with an equivalent expression.

Algebra 1

Open term →

Substitution Property of Equality

If two quantities are equal, one can replace the other in an equation or expression.

Geometry

Open term →

Supplementary Angles

Two angles whose measures add to 180°.

Geometry

Open term →

Symmetric Property

If one quantity equals a second, the second equals the first.

Geometry

Open term →

System of Equations

Two or more equations solved together to find values that satisfy all of them.

Algebra 1

Open term →

System of Linear Inequalities

Two or more linear inequalities graphed and solved together.

Algebra 1

Open term →

Showing 12 of 256 terms

Every term here is pulled straight from our Algebra 1 and Geometry courses—where the same visuals come to life in full video lessons.

See the courses →

bottom of page