Instructional Video2:28
Khan Academy

Rounding Whole Numbers 2, Arithmetic Properties, Pre-Algebra

For Students 3rd - 5th Standards
This is the second in a series of three Khan Academy videos on rounding whole numbers. Students watch Sal Khan round the number 423,275 to the nearest thousand by looking at the number in the hundreds place. If it is five or higher, you...
Instructional Video3:18
Khan Academy

Adding Fractions with Like Denominators, Fractions, Pre-Algebra

For Students 5th - 7th
Show your students this presentation to help them understand how to add fractions with like denominators. Sal adds 3/15 to 7/15 and then simplifies his answer. He uses drawings and multiple colors to show the actual process.
Instructional Video2:41
Khan Academy

Dividing Mixed Numbers, Fractions, Pre-Algebra

For Students 5th - 7th
Before Sal can divide a mixed number, he has to rewrite it as an improper fraction. He explains that dividing a fraction is the same as multiplying it by its reciprocal and that you can "cancel out" numbers to make multiplying easier.
Instructional Video3:20
Khan Academy

Dividing Polynomials 1, Polynomial and Rational Functions, Algebra II

For Students 9th - 11th
Divide two polynomial expressions by writing the problem as a fraction or as long division. Sal shows how to use long division to divide polynomials. A solid understanding of polynomial operations is necessary to grasp this video.
Instructional Video4:03
Khan Academy

Multiplying Fractions and Whole Numbers: Mixed Number Answer, Pre-Algebra

For Students 5th - 7th
Here is a great video explaining multiplying a fraction by a whole number. Sal shows students how to put a whole number over 1 to multiply it by a fraction. He simplifies his answer and writes it as a mixed number.
Instructional Video1:04
Khan Academy

Rounding Whole Numbers 3, Arithmetic Properties, Pre-Algebra

For Students 3rd - 5th Standards
Sal Khan completes the three-part rounding series with this Khan Academy video on rounding to the nearest 10. He references the actions taken in video two, so students would be best served if all three videos were shown in sequence.
Instructional Video4:23
Khan Academy

Rounding Whole Numbers Example 1, Arithmetic Properties, Pre-Algebra

For Students 3rd - 5th Standards
Rounding is an essential skill that must be used throughout the study of mathematics. This Khan Academy video is the first in a series of three. It shows how to round the number 24,259 to the nearest hundred, using a number line.
Instructional Video2:10
Khan Academy

Example 4: Adding and Subtracting Polynomials, Algebra Basics

For Students 7th - 9th
Adding two polynomials begins with simplifying when possible. Sal demonstrates the process he uses to combine like terms and explains why the process works. This video would be great for those who need a quick refresher.
Instructional Video4:45
Khan Academy

Polynomial Divided by Monomial, Polynomial and Rational Functions, Algebra I

For Students 9th - 11th
Let's think about how a person could simplify an expression where a polynomial is divided by a monomial. Sal shares three different modes he could use to simplify, then uses each way to solve the same problem.
Instructional Video0:56
Khan Academy

Simplifying Rational Expressions (Old Video)

For Students 8th - 10th
Here is a quick look at how one could simplify a monomial expression involving division. Sal works on a problem and briefly explains his process. Great as a concept review.
Instructional Video5:23
Khan Academy

Multiplying in Scientific Notation (Example), Pre-Algebra

For Students 7th - 9th
Apply the concept of scientific notation to a word problem involving the rate of speed. Sal explains how to express the answer using scientific notation.
Instructional Video3:13
Khan Academy

Finding the Greatest Common Factor of Two Monomials, Algebra I

For Students 9th - 11th
Sal explains that the most significant common factor of any number is the largest number divisible into both monomials and not necessarily the number with the most significant value. He breaks down two numbers into their prime factors as...
Instructional Video1:49
Khan Academy

Example 1: Factoring a Difference of Squares with Two Variables, Algebra II

For Students 9th - 11th
Practice is an important learning tool. This practice problem allows students to apply their know-how to factoring a binomial with a difference of squares. Sal explains his process briefly, making this video suitable for those already...
Instructional Video4:46
Khan Academy

Factoring Sum of Cubes, Polynomial and Rational Functions, Algebra II

For Students 9th - 11th
Here is a special form of a sum of cubes problem, where students use algebraic multiplication to rewrite each term in expanded form. Sal gives an example before solving the problem to show the process that he will use to determine the...
Instructional Video5:02
Khan Academy

Example 1: Factoring Trinomials with a Common Factor, Algebra II

For Students 9th - 11th
Use division and factoring to determine the leading one coefficient. This presentation thoroughly explains how to factor a trinomial to determine its common factors.
Instructional Video0:29
Curated OER

One Of These Things

For Teachers Pre-K - K
After looking at a group with three pairs of sunglasses and a hat, viewers have to identify which item doesn’t belong. As a critical thinking and classification activity, this video could be linked to a lesson on grouping objects.
Instructional Video0:49
Curated OER

Hot! Hot! Hot!

For Teachers Pre-K - K
Baby Bear shows how to sound out the word hot. He also illustrates its meaning. This is a creative way to introduce new Language Arts.
Instructional Video0:50
Sesame Street

Kids Talk: Making Friends

For Teachers Pre-K - K
Making friends is an important part of the school experience. In this clip, children talk about how they make friends and what they do with these special people. Children will love exploring this topic.
Instructional Video0:51
Curated OER

Z Zebra Song

For Teachers Pre-K - K
Add some tunes to your letter lesson with the "Zebra Song." Elmo sings, dances, and zips around throughout this fun song!
Instructional Video2:15
Curated OER

Mad Men

For Teachers Pre-K - K
A spoof on the television series, this Mad Men episode is a great way to discuss Social Studies. The characters experience anger, sadness, and happiness. It's a motivating way to cover this topic with students.
Instructional Video2:13
Curated OER

Guess The Seasons

For Teachers Pre-K - K
Fall, winter, spring, and summer are all of the seasons of the year. Can your class guess what seasons these Sesame Street characters are singing about throughout the video? Tip: Have children share their favorite characteristics of each...
Instructional Video2:23
Curated OER

Potty Time

For Teachers Pre-K - K
Preschoolers will love this video with a potty theme. Elmo's dad sings a catchy tune about using the bathroom. You might find yourself singing along with the tune.
Instructional Video1:13
Sesame Street

Sesame Street: Zoe Says

For Students Pre-K - K
This game of "Zoe says" shows how your young viewers can get along with each other and play a game. This is a great video to watch when learning about parts of the body.
Instructional Video3:11
Khan Academy

Solving Radical Equations, Exponent Expressions and Equations, Algebra I

For Students 7th - 11th
Continue your lecture on radical equations with this video, which features Sal solving a few more problems with his classic clarity and understandable way. Young mathematicians will benefit immensely from seeing his cool hand guide the...

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