Khan Academy
Rounding Whole Numbers 2
This is the second in a series of 3 Khan Academy videos on rounding whole numbers. Students watch Sal Khan round the number 423,275 to the nearest thousand by looking to the number in the hundreds place. If it is 5 or higher, you round...
Curated OER
Scientific Notation 2
Apply the concept of scientific notation to a word problem involving the rate of speed. Sal explains how to express the answer in scientific notation.
Curated OER
Factoring Sum of Cubes
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 prior to solving the problem in order to show the process that he will use to...
Curated OER
Average or Central Tendency: Finding Mean, Median And Mode
A good explanation for blossoming mathematicians, this video explains the difference between average and central tendency, as well as arithmetic mean, median, and mode. Those who haven't grasped these concepts in algebra or those who are...
Khan Academy
Recognizing Linear Relationships
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,...
Khan Academy
Solving Equations with the Distributive Property
Here is an equation in which the first step is to use the distributive property to get rid of the parenthesis. Then it is solved for the variables. Since there are variables on both sides of the equation, it is important to verify the...
Curated OER
Binomial Theorem (Part 3)
In this video on the Binomial Theorem, Sal tries to give an intuition behind why combinations are part of its definition. By looking at the expansion of (a + b)3 and carefully looking at where each value originates from, one can see how...
Curated OER
Conic Sections: Hyperbolas 2
Here is an example in this video of graphing a hyperbola centered at the origin. First, Sal shows solving for the equations of the asymptotes and then shows how to determine the direction of the hyperbola. He takes the approach of not...
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
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...
TED-Ed
What Is Metallic Glass?
Metallic glasses are shiny and opaque, and they conduct heat and electricity like metals. They have a lot of characteristics that make them special and unique to most metals. But, what are they made of? Watch this video to discover what...
California Academy of Science
Desalination
Desalination requires around two gallons of sea water to make one gallon of fresh water—that's quite a ratio! Viewers consider the pros and cons of desalination as one option to providing fresh water. They learn about two different...
Scholastic
Plimoth Plantation Virtual Field Trips
Take a virtual field trip to Plimoth Plantation with four video tours and a slideshow. Videos take viewers aboard the Mayflower, inside a pilgrim village, to a Wampanoag homesite, and the Plimoth Plantation. Slideshow pictures are...
Crash Course Kids
Defining Success
The telephone, refrigerator, and light bulb are all solutions to a problem that an engineer successfully designed. Get to know more about how engineers define success, using this video. The focus goes through a checklist that directs...
Crash Course Kids
Defining a Problem
Scholars may think they face big problems, but not like the problems engineers face. During this episode, the first step of the engineering process, define the process, is examined through a hypothetical scenario that invites learners...
Crash Course Kids
Got Some Solutions?
Does a problem only have one solution? This is the driving question of a video that allows pupils to discover that there is more than one way to solve a problem. A demonstration examines the checklist engineers go through to find the...
Crash Course Kids
Succeed by Failing
"If at first you don't succeed, try, try again." This statement has never rung truer than when engineers are testing solutions. Here is an informative video that focuses on the failure point which engineers often face when testing...
Northeast Arkansas Education Cooperative
Function Families: Translations and Reflections
This comprehensive introduction to rigid transformation of functions does a fabulous job of breaking down translations and reflections into manageable concept chunks. Care is taken with horizontal translations, vertical translations,...
Get Chemistry Help
Chemistry Lesson: Balancing Chemical Equations
An informative video segment describes how to balance chemical equations. It ensures pupils will obey the laws of conservation of mass and shares tips to assist young chemists who may need additional help to ensure a more simplistic way...
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
Water-Wise Farms
The seventh lesson on Fresh Solutions in the 10-part series addresses solutions implemented on farms. It focuses on the options currently in use and hopes for the future of water conservation and farming.
California Academy of Science
Vertical Farming
Half of crops from traditional farming never get harvested, while 90 percent of crops from vertical farming go into the food supply. As land runs out for farming and the need for crops increases, could vertical farming solve the problem?...
Curated OER
Bonds Vs. Stocks
What's the difference between stocks and bonds? Sal illustrates this concept through explaining the two ways a company can raise capital: debt or equity. Drawing out a balance sheet, he categorizes stocks as equity and bonds as debt,...
Curated OER
Chapter 11: Bankruptcy Restructuring
Continuing from the last clip on liquidation, scholars explore another bankruptcy avenue: restructuring. Sal briefly touches on covenants with debt holders and goes into reasons a company would refrain from liquidating when facing...