top of page

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

Opposite Sides

Sides of a polygon that do not share a common vertex.

Geometry

Open term →

Opposite Sides Parallel and Congruent Theorem

If one pair of opposite sides of a quadrilateral is both parallel and congruent, it is a parallelogram.

Geometry

Open term →

Ordered Pair

Two numbers, written (x, y), that identify a point's location on the coordinate plane.

Algebra 1

Open term →

Output

The value produced by a function for a given input.

Algebra 1

Open term →

Parabola

The U-shaped curve that graphs a quadratic function.

Algebra 1

Open term →

Parallel Lines

Lines in the same plane that never intersect.

Algebra 1, Geometry

Open term →

Parallelogram

A quadrilateral with both pairs of opposite sides parallel.

Geometry

Open term →

Parallelogram Consecutive Angles Theorem

Consecutive angles in a parallelogram are supplementary.

Geometry

Open term →

Parallelogram Diagonals Converse

If the diagonals of a quadrilateral bisect each other, the quadrilateral is a parallelogram.

Geometry

Open term →

Parallelogram Diagonals Theorem

The diagonals of a parallelogram bisect each other.

Geometry

Open term →

Parent Function

The simplest form of a function before transformations are applied.

Algebra 1

Open term →

Perfect Cube

A number that can be written as an integer multiplied by itself three times.

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.

bottom of page