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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

Exponent

A small number showing how many times the base is multiplied by itself.

Algebra 1

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Exponential Decay

An exponential function that decreases by the same percentage over equal intervals.

Algebra 1

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Exponential Function

A function in which the variable appears as an exponent.

Algebra 1

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Exponential Growth

An exponential function that increases by the same percentage over equal intervals.

Algebra 1

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Expression

A combination of numbers, variables, and operations with no equals sign.

Algebra 1

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Exterior Angle of a Triangle

An angle formed by one side of a triangle and the extension of an adjacent side.

Geometry

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Exterior Angles

Angles formed outside a polygon by extending one of its sides.

Geometry

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Exterior of an Angle

The space outside an angle, not between its two sides.

Geometry

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Factor

A number or expression that is multiplied by another to produce a product.

Algebra 1

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Factored Form

A form of an expression written as a product of its factors.

Algebra 1

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Function

A relationship where each input has exactly one output.

Algebra 1

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Function Notation

A notation such as f(x) used to name a function and show its input.

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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