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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

Angle-Angle (AA) Similarity Theorem

If two angles of one triangle are congruent to two angles of another, the triangles are similar.

Geometry

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Angle-Angle-Side (AAS) Congruence Theorem

If two angles and a non-included side of one triangle match another, the triangles are congruent.

Geometry

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Angle-Side-Angle (ASA) Congruence Theorem

If two angles and their included side match another triangle, the triangles are congruent.

Geometry

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Asymptote

A line that a graph approaches but does not reach.

Algebra 1

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Axis of Symmetry

The vertical line that splits a parabola into two mirror halves.

Algebra 1

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Base (Exponent)

The number or expression being raised to a power.

Algebra 1

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Base (Triangle)

The side of a triangle opposite a chosen vertex.

Geometry

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Base Angles

The two angles adjacent to the base of an isosceles triangle.

Geometry

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Binomial

A polynomial with exactly two terms.

Algebra 1

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Bisect

To divide something into two congruent parts.

Geometry

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Boundary Line

The line that separates the solution region from the non-solution region of an inequality.

Algebra 1

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Boundary Point

A point on the boundary line of a solution region.

Algebra 1

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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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