Instructional Video3:38
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TED-Ed

What You Might Not Know About the Declaration of Independence

For Students 8th - 11th
Did you know that the Declaration of Independence was signed on July 2, 1776? Did you know that five men, not just Thomas Jefferson, are credited with writing the Declaration? Did you know that references to slavery were excised from the...
Instructional Video5:45
TED-Ed

Ugly History: Japanese American Incarceration Camps

For Students 6th - 12th Standards
When Aki Kurose was 16 years old, her family was forced to relocate from their home in Seattle with other Japanese Americans. The government feared that despite their loyalty to the United States, they were operating on behalf of...
App
1
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Texas Instruments

TI-Nspire™

For Students 6th - Higher Ed Standards
We landed on the moon with less computing capabilities than you can find in this app! Here is a multiple function calculator that takes all the power you get from a handheld and adds the wonderful large screen that only a tablet can...
App
Paul Hudson

SPQR Latin Dictionary and Reader

For Students 7th - Higher Ed
Searching for an incredibly thorough Latin app? Look no further! Latin learners will be quite satisfied with the collection of texts, three dictionaries, customizable flashcards, assessment options, and other features that are right at...
Instructional Video14:13
Curated OER

Introduction to Ratios (new HD version)

For Students 6th - 9th
Sal defines ratios. Then he shows how to write ratios three different ways. This concept is then demonstrated with four examples for finding quantities by using ratios.
Lesson Plan2:39
Code.org

Star Wars: Building a Galaxy with Code

For Teachers 6th - 12th
Welcome to the code side. The interactive lesson introduces coding in a game format with familiar characters. Young computer experts learn to develop code to control the interaction of the characters in the game. The activity ends with...
Instructional Video13:29
Khan Academy

Natural Selection and the Owl Butterfly

For Students 10th - 12th
The lecturer describes how specific characteristics develop. In this case, he discusses eye marking. The impact of environmental factors significantly influences the likelihood of successful reproduction, as favorable genes are more...
Instructional Video1:32
Khan Academy

Example: Adding Two Digit Numbers (No Carrying)

For Students 3rd - 5th
Adding double-digit numbers can seem difficult for some students. But this Khan Academy video makes this process clear in a developmentally sound way. Students watch as 'Sal' adds the number 46 to 43. He references each number by its...
Instructional Video4:09
Khan Academy

Writing a Number in Standard Form, Arithmetic Properties, Pre-Algebra

For Students 3rd - 5th
Viewing this Khan Academy video helps with grasping the concept of place value. Learners write the word six hundred forty-five million, five hundred eight-four thousand, four hundred sixty-two in standard form, using multiplication as a...
Instructional Video5:47
Khan Academy

Example 1: Multiplying a Binomial by a Binomial, Algebra I

For Students 8th - 10th
There are particular ways to multiply binomials. One could use the FOIL method or employ the distributive property. Sal walks through each step of the FOIL method and then shows that using distribution results in the same answer. This is...
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...

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