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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

Corresponding Angles (Parallel Lines)

Angles in the same relative position when a transversal crosses two lines.

Geometry

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Corresponding Angles (Polygons)

Angles in polygons that occupy the same relative position.

Geometry

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Corresponding Angles Converse

If corresponding angles are congruent, the two lines are parallel.

Geometry

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Corresponding Angles Theorem

If parallel lines are cut by a transversal, corresponding angles are congruent.

Geometry

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Corresponding Parts

Matching sides or angles that occupy the same relative position in figures.

Geometry

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Cube Root

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

Algebra 1

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Deductive Reasoning

Using known facts and logical steps to reach a valid conclusion.

Geometry

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Degrees

A unit used to measure angles, with one full rotation equal to 360 degrees.

Geometry

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Denominator

The bottom number in a fraction.

Algebra 1

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Dependent Variable

The output value that depends on the input variable.

Algebra 1

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Diagonal

A segment connecting two nonconsecutive vertices of a polygon.

Geometry

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Difference of Squares

A binomial of the form a² − b² that factors as (a + b)(a − b).

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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