Instructional Video7:11
Curated OER

Rectangular Coordinate System

4th - 6th
Everything you need to understand the rectangular coordinate system is explained in this easy to follow video. Great for elementary to middle schoolers learning about plotting points, graphing, and locating points on a coordinate grid....
Instructional Video5:17
Khan Academy

Number Sets, Fractions, Pre-Algebra

5th - 7th
Knowing mathematic terminology is vital for building a functional academic vocabulary. In this video, Sal defines number sets and the terms natural numbers, whole numbers, integers, rational numbers, irrational numbers, and real numbers....
Instructional Video3:41
Corbett Maths

Algebraic Notation

6th - 9th Standards
Algebraic vocabulary and notation sometimes seem like a foreign language. A video tutorial breaks down the vocabulary and notation into easy-to-understand chunks. The narrator writes the notation with symbols, in words, and verbalizes...
Instructional Video2:34
Mathispower4u

Write Algebraic Expressions from Statements: Form ax+b and a(x+b)

6th - 9th Standards
Write an expression from an expression, verbal to algebraic. A quick video lesson gives pointers on how to write algebraic expressions from words. Stressing important vocabulary and order of the expression help to develop an...
Instructional Video13:00
Crash Course

What Is Statistics: Crash Course Statistics #1

6th - 12th Standards
Statistics in the wrong hands can be a dangerous thing. The first installment of a five-episode series explains the basics of statistics. The instructor focuses on the usefulness of statistics and how to identify misuse of stats.
Instructional Video1:46
Brightstorm

3-D Solid Properties

9th - 12th Standards
Let's move into the third dimension! Learners explore the vocabulary and notation related to three-dimensional figures. The video covers examples of pyramids, but the vocabulary is universal to all 3-D objects.
Instructional Video0:55
Curated OER

Subtraction

2nd - 4th
A cute video on the basics of subtraction await! Efrin explains what subtraction is, what it isn't, and provides several simple examples of how subtraction works. A great video for younger learners just building a mathematical...
Instructional Video0:38
Curated OER

The Equals Sign

1st - 3rd
Oh my goodness! A teacher splits into double to show what the equals sign means. She defines the term and provides a pictorial and mathematical example of things that are equal. Wonderful for visual learners.
Instructional Video0:56
Curated OER

The Equal Sign

K - 2nd
Oh that equal sign! Russel kindly explains what an equal sign is and what it means. He provides several examples in this super short yet informative video.
Instructional Video1:17
Curated OER

Odd Numbers

1st - 3rd
Peter from the number underground is here to tell your class a math secret. He explains odd numbers. This clip is super cute and engaging plus it does a great job providing rules to determine if a number is odd or not. The math...
Instructional Video2:03
Curated OER

Fraction Terms

5th - 7th
A pint sized math master shares what he knows about fractions. He clearly defines what the denominator and numerator is, what they represent, and what a fraction is. He is a little flustered and his delivery is rushed, but he's got a...
Instructional Video0:50
Curated OER

Finding the Reciprocal

4th - 6th
Can the concept of finding the reciprocal be shown in 50 seconds? Sounds impossible but Fraction Freddy literally flips over to show what the inverse of 4/5 is. Kids will love the highly visual elements used to demonstrate the term...
Instructional Video1:38
Curated OER

Constants (2)

5th - 7th
Danny the penguin represents a constant and snow represents variables. This clip is wonderful for learners just starting to understand algebra. It is clear, provides concrete examples, and is totally cute. A great idea for expressing...
Instructional Video3:17
Curated OER

Point, Line, Plane, and Space - Geometry Help

3rd - 6th
Inform your teaching or use this clip at an independent work station. Basic geometric concepts of point, line, plane, and space are fully defined and exemplified in a straightforward and clear way. This clip is slow enough for note...
Instructional Video11:22
Curated OER

Algebra: Introduction to Algebra

8th - 12th
That old math tutor from is back and he is here to introduce the concept of algebra. This clip is actually quite clear and informative. Variables, constants, and algebra are defined along side solid examples. This clip would be good for...
Instructional Video1:05
Curated OER

Graphing Ordered Pairs

5th - 8th
A one-minute clip shows how to graph ordered pairs, a definition, example, and process are provided. This video is not narrated and uses nothing but visual aids and written explanations. Great for visual learners.
Instructional Video1:30
Curated OER

Basics of Ratios

5th - 8th
A good definition of a mathematical vocabulary term is worth its weight in gold. This video tutorial defines the term ratio, provides three different ways ratios are expressed, and gives a real-life ratio example. Good video for those...
Instructional Video1:53
Curated OER

Types of Polygons - Geometry Help

7th - 12th
If it has three sides it's a triangle! Learn about the different types of polygons and how they are classified by the number of sides they have. This clip clearly defines each type of polygon, but fails to show examples.
Instructional Video1:52
Curated OER

Radius, Chord, Diameter, and Secant

9th - 12th
What do a secant, chord, diameter, and radius all have in common? They are all components or measurements of a circle! This clip quickly defines each of these terms using verbal, written, and diagram examples.