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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

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

Line (Geometry)

A straight path that extends forever in both directions.

Geometry

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Line Symmetry

A figure has line symmetry when one half is a mirror image of the other.

Geometry

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Line of Reflection

The line across which a figure is reflected to create a mirror image.

Geometry

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Line of Symmetry

A line that divides a figure into two matching mirror-image halves.

Geometry

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Linear Equation

An equation whose graph is a straight line.

Algebra 1

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Linear Function

A function whose graph is a straight line.

Algebra 1

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Linear Inequality

An inequality that can be graphed as a shaded region with a linear boundary.

Algebra 1

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Linear Pair

Two adjacent angles whose noncommon sides form a straight line.

Geometry

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Maximum (Quadratic Functions)

The highest y-value of a quadratic function when its parabola opens downward.

Algebra 1

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Measure of an Angle

The amount of rotation between the two sides of an angle, measured in degrees.

Geometry

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Midpoint

The point that divides a segment into two congruent segments.

Geometry

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Midpoint Formula

A formula used to find the point halfway between two points.

Geometry

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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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