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Curated Video
Factoring Strategies: Rewriting Expressions
In this video, the teacher explains different strategies for factoring expressions. They review factoring by grouping and factoring a difference of two squares. They also provide examples of factoring expressions completely using these...
Curated Video
Solving Systems of Linear Equations by Substitution
In this video, mathematicians learn how to solve systems of two linear equations using the substitution method. The instructor explains the concept using real-life examples, such as ticket prices and fruit costs. By substituting values...
Britlish
Bubble Idioms (subtitles)
Idioms are an important part of the English language, and this video looks at British English idioms associated with bubbles. There are subtitles on screen and the narrator narrates with clear standard British accent. Carefully selected...
Why U
Algebra 29 - Understanding Percentages
Percentages are one method of describing a fraction of a quantity. The percent is the numerator of a fraction whose denominator is understood to be one-hundred.
Curated Video
Solving Systems of Linear Equations Using the Addition Elimination Method
In this video, the teacher explains how to solve a system of linear equations using the addition elimination method. They demonstrate the process step by step and provide examples to illustrate the concept. By following this method,...
Curated Video
Finding Zeros of Quadratic Functions with Leading Coefficient Greater Than One
This video lesson teaches students how to identify the zeros of a quadratic function in standard form when the leading coefficient is greater than one. It explains the concept of factoring and setting the factored form equal to zero to...
Professor Dave Explains
Introduction to Algebra: Using Variables
An introduction to algebra and the concept of variables.
Curated OER
More Spaghetti
A customer tries to order a spaghetti meal from Grover but finds that it is not so easy. The video explores the concept of quantity, including more and less.
Curated OER
What is Rate of Change?
The rate of change is defined as how one quantity changes in relationship to another quantity. The instructor diagrams a graph and demonstrates how to use a formula to calculate the rate of change. It might take two viewings to catch all...
Science Friday Initiative
Science Friday: How Much Is a Trillion?
In an effort to comprehend the largeness of the 3.1 trillion dollars in the 2009 U.S. budget, this audio recording discusses ways of visualizing this number. [13:56] Aired Feb. 8, 2008
Khan Academy
Khan Academy: Change in Supply Versus Change in Quantity Supplied
This video lesson from Khan Academy will help students understand the difference between the effects of the changes in supply with changes in the quantity supplied. This resource is designed as a review for the AP Macroeconomics Test or...
Khan Academy
Khan Academy: Change in Demand Versus Change in Quantity Demanded
This video lesson from Khan Academy explains the differences between a change in the quantity demanded for a good (which causes a movement along a demand curve) and the change in a good's demand (which causes the entire demand curve to...
Khan Academy
Khan Academy: Elasticity of Supply Using a Different Method
Sal Khan discusses elasticity of supply. [9:33]
Khan Academy
Khan Academy: Factors Affecting Supply
Price changes the quantity supplied, but what might cause supply to increase even if the price hasn't changed? In this video, we explore the determinants of supply: those factors that cause an entire supply curve to shift. [6:58]
Sophia Learning
Sophia: Creating a Quantity Pictograph: Lesson 5
This video lesson [3:46] demonstrates how to create a quantity pictogram. It is 5 of 9 in the series titled "Creating a Quantity Pictograph."
Sophia Learning
Sophia: Creating a Quantity Pictograph: Lesson 1
This video lesson [3:55] demonstrates how to create a quantity pictogram. It is 1 of 9 in the series titled "Creating a Quantity Pictograph."
Sophia Learning
Sophia: Qualifiers: Lesson 1
To define qualifiers (absolute and relative) and to demonstrate examples of how they establish levels of increased, decreased intensity or value. This lesson is 1 of 3 in the series titled "Qualifiers."
Sophia Learning
Sophia: Units of Quantity: Lesson 2
Students learn the units used to describe quantitative measurements. This lesson is 2 of 5 in the series titled "Units of Quantity."
Sophia Learning
Sophia: Units of Quantity: Lesson 5
Students learn the units used to describe quantitative measurements. This lesson is 5 of 5 in the series titled "Units of Quantity."
Sophia Learning
Sophia: Creating a Quantity Pictograph
This video lesson demonstrates how to create a quantity pictogram.
Sophia Learning
Sophia: Creating a Quantity Pictograph
This video lesson demonstrates how to create a quantity pictogram.
Sophia Learning
Sophia: Creating a Quantity Pictograph
This video lesson demonstrates how to create a quantity pictogram.
Sophia Learning
Sophia: Qualifiers
To define qualifiers (absolute and relative) and to demonstrate examples of how they establish levels of increased, decreased intensity or value. This tutorial lesson shares a short screencast [5:51] with the lesson's content.