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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

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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

Shading (Linear Inequality)

Graphing the solution to a linear inequality by shading the appropriate region.

Algebra 1

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Shading (One-Variable Inequality)

Graphing the solution to a one-variable inequality on a number line.

Algebra 1

Open term →

Side-Angle-Side (SAS) Congruence Theorem

If two sides and their included angle match another triangle, the triangles are congruent.

Geometry

Open term →

Side-Side-Side (SSS) Congruence Theorem

If all three sides of one triangle match three sides of another, the triangles are congruent.

Geometry

Open term →

Sides of an Angle

The two rays that form an angle.

Geometry

Open term →

Simplest Form of a Radical

A radical expression with no perfect-power factors remaining inside the radical.

Algebra 1

Open term →

Slope

How steep a line is — the rise over the run, or change in y over change in x.

Algebra 1, Geometry

Open term →

Slope-Intercept Form

A line written as y = mx + b, showing its slope and y-intercept.

Algebra 1, Geometry

Open term →

Solution (Quadratic Functions)

An x-value that makes a quadratic equation equal to zero.

Algebra 1

Open term →

Solution (Systems of Equations)

An ordered pair that makes every equation in a system true.

Algebra 1

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Solution Set (Linear Inequality)

The set of all values that make a linear inequality true.

Algebra 1

Open term →

Solution Set (One-Variable Inequality)

The set of all values that make a one-variable inequality true.

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.

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