TED-Ed
How to Create Cleaner Coal
It's easy to take for granted the the importance of electricity in modern society, and even easier to overlook the environmental cost that is paid for all that energy. Watch as this video explores the detrimental impact...
Northeast Arkansas Education Cooperative
Function Families and Their Connections Including Vertical Shift of an Absolute Value Function
One of the strongest tools an algebra learner develops is the ability to quickly and accurately graph almost any given function. Often doing this quickly and accurately requires rigid transformations to a parent function,...
TED-Ed
Why Humans Are so Bad at Thinking about Climate Change
Climate change is in the news more than ever these days, and it will increasingly continue to be a hot topic in the future. Watch a video that proposes different ways people can begin to think about climate change in order to...
California Academy of Science
Waste Water Recycling
What types of water qualify for recycling and how does the recycling process work? The eighth lesson in the 10-part series exploring Fresh Solutions presents both the financial and water savings associated with emerging recycling methods.
California Academy of Science
Recharging Aquifers
The ninth lesson in a 10-part series on Fresh Solutions explains how aquifers develop and how people currently use them. The video also explores how aquifers are being depleted faster than they refill and the long-term concerns about...
California Academy of Science
Renewable Energy: Clean Tech Solutions
Renewable energy originally found application more than 790,000 years ago. A relevant and engaging lesson explains some of the current options for renewable energy. Technology changes quickly and many different options provide hope for...
PBS
Killer Landslides | Monitoring and Predicting Landslides
Landslides kill between 25 and 50 people every year in the United States alone. This is why predicting a landslide literally saves lives. A scientist applied new technology to a mountain and accurately predicted a landslide. Thanks to...
Khan Academy
Solving Rational Equations 2, Polynomial and Rational Functions, Algebra II
This video focuses on rational expressions and completes Sal's lecture series on working with and solving this particular type of equation. Its length would be ideal for a computer lab visit or homework assignment (in conjunction with a...
Khan Academy
Example 1: Factoring a Difference of Squares with Two Variables, Algebra II
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...
Khan Academy
Example: Adding Two Digit Numbers (No Carrying)
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...
Khan Academy
Example 1: Multiplying a Binomial by a Binomial, Algebra I
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...
Khan Academy
Rounding Whole Numbers 3, Arithmetic Properties, Pre-Algebra
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.
Khan Academy
Rounding Whole Numbers Example 1, Arithmetic Properties, Pre-Algebra
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.
Khan Academy
Example 4: Adding and Subtracting Polynomials, Algebra Basics
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.
Khan Academy
Factoring Sum of Cubes, Polynomial and Rational Functions, Algebra II
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...
Khan Academy
Finding Mean, Median, and Mode, Descriptive Statistics, Probability and Statistics
This video provides a reasonable explanation for blossoming mathematicians, explaining the difference between average and central tendency, as well as arithmetic mean, median, and mode. Those who haven't grasped these concepts in algebra...
Khan Academy
Multiplying and Dividing Rational Expressions 2, Algebra II
Provide your algebra class with some review of rational expressions in this video. Sal uses several sample problems to demonstrate the process, and his explanations are clear and easy to follow.
Khan Academy
Solving Equations with the Distributive Property, Linear Equations, Algebra I
Here is an equation in which the first step is to use the distributive property to remove the parenthesis. Then, it is solved for the variables. Since variables are on both sides of the equation, it is important to verify the answer by...
Khan Academy
Area of a Circle, Perimeter, Area, and Volume, Geometry
This production, the second installment in a series of circles, demonstrates the process of finding the area of a circle. It is effective as an introductory tool. However, it needs to explain the reasoning behind the formula because that...
Khan Academy
Parallel Lines From Equation, Mathematics I, High School Math
Here is a fairly basic video that uses three equations, each written in slope-intercept form, to determine whether the lines are parallel. Sal graphs each equation on the same coordinate plane to show how their slopes compare. The video...
Khan Academy
Rounding Whole Numbers 2, Arithmetic Properties, Pre-Algebra
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...
Khan Academy
Recognizing Linear Functions, Linear Equations and Functions
Starting with a set of values for the x and y variables, this video shows how to tell whether these points determine a linear or non-linear function. Sal first defines linear functions in terms of the change in y over the change in x,...
California Academy of Science
Your Digital Footprint: Data and Energy Use
Understanding energy usage requires knowing more than how much energy it takes to charge your cell phone. Scholars learn each text sent uses energy as does each video, game, and phone call. They observe the larger grid of data transfers...
TED-Ed
How Does Your Smartphone Know Your Location?
When your smartphone tells you the weather of your current location or gives you directions to the nearest gas station, there's more going on that you might realize. Follow along with this short video as it explains how...