This video shows how to graph marginal cost, average variable cost, and average total cost. The relationship between these curves at important points is also explored.
Learn how to calculate gravitational potential energy when we can no longer assume the gravitational field is uniform.
Why do astronauts appear weightless despite being near the Earth? Created by Sal Khan.
After the fall of the Western Roman Empire in the 5th Century, division between the Latin Church in the West and the Greek-speaking church in the East widen over issues such as primacy of the Bishop of Rome, iconoclasm, filioque and the crowning of Charlemagne as Holy Roman Emperor.
After hundreds of years of increasing division between the Latin Church led by the Pope in Rome and the Eastern. Greek church led by the Byzantine Emperor and the Patriarch of Constantinople, the Great Schism in 1054 marks the beginning of the formal division between what will be known as the Roman Catholic Church and the Eastern Orthodox Church.
World War I began after Serbian nationalist Gavrilo Princip assassinated Archduke Franz Ferdinand of the Austro-Hungarian Empire on June 28, 1914. Austria-Hungary declared war on Serbia, whose ally Russia then mobilized for war. An alliance between Germany and Austria then prompted Germany to preemptively declare war on Russia, Serbia, and Russia's ally France. Germany then attacked France through Belgium, activating an alliance between the United Kingdom and Belgium, and the United Kingdom declared war on Germany and Austria-Hungary. Created by Sal Khan.
What were the Greco Persian wars and how did they start? Sal explains.
A primer of why Greece is in a tough situation (more in future videos). Created by Sal Khan.
What Greece could have done if it had its own currency. Created by Sal Khan.
Learn about a study in which participants discovered contaminants in their homes, and how green chemistry may provide alternatives to such everyday toxins, in this video adapted from Contaminated Without Consent.
Difference between gross profit, operating profit, and net income. Created by Sal Khan.
Metals are grouped according to their characteristics. This video segment uses the periodic table for an in-depth discussion.
An overview of grouping CSS selectors.
In this unit, students will trace the development of sectionalism in the United States as it was driven by the growing dependence upon, and defense of, black slavery in the southern states.
Open Education Week is an ideal time to hear from our community members who are leading open education initiatives on their campuses and across their states to reduce costs for students and empower faculty to enhance learning in their classrooms. We will hear from two OER librarians and a faculty member who are successfully growing awareness and adoption of open educational resources. They will share the successes and challenges of coordinating statewide efforts and influencing their colleagues to adopt OER in their courses.
India experienced a golden age during the Gupta Dynasty; find out why and how!
Introduction to another color selection model we use called HSL.
How to use HTML to embed an image in a webpage.
How to use HTML to create lists.
How to use the 'em' tag in an HTML page.