In English, you use commas to separate introductory elements from the rest of a sentence. Find out how with David and Paige!
Today we’re going to talk about using commas in dialogue,' said David and Paige, KA’s resident grammarians.
Learn how to use commas when writing addresses (in space) and dates (in time).
A brief look at how money has evolved over time from being printed on valuable substances (commodity money), to merely representing those valuable substances (commodity-backed money), to not representing anything at all (fiat money). Created by Grant Sanderson.
What's the difference between a common noun and a proper noun?
Overview of Communism and Marxist-Leninist states.
Overview of Communism and Marxist-Leninist states.
Trade benefits both agents when each specializes in what they have a comparative advantage in producing and trading with another agent who has a comparative advantage in something else. The gains from trade occur based on comparative advantage, not absolute advantage. Created by Sal Khan.
When two agents have differing opportunity costs, there is potential for both of the to benefit if they specialize in what they each have comparative advantage in. This video explores how two parties can get better outcomes by specializing in their comparative advantage and trading. Created by Sal Khan.
In this video we work through an example of a question like you might see on an AP microeconomics or AP Macroeconomics exam determining who has comparative advantage in producing a good using data from a table. Topics include how to calculate opportunity costs and determine who has comparative advantage based on opportunity cost.
A discussion with Khan Academy World History Fellow Eman Elshaikh on the comparative roles of women in Rome and Han China (with brief discussion of women in Athens as well).
In this video, Kim discusses how mutual misunderstandings between Europeans and Native Americans often defined the early years of interaction and trade as each group sought to make sense of the other.
Similarities and differences between the Roman Empire and the "Byzantine Empire" (which considered itself the continuation of the Roman Empire).
Comparing Accrual and Cash Accounting. Created by Sal Khan.
Comparison of the processes of mitosis and meiosis. Mitosis produces two diploid (2n) somatic cells that are genetically identical to each other and the original parent cell, whereas meiosis produces four haploid (n) gametes that are genetically unique from each other and the original parent (germ) cell. Mitosis involves one cell division, whereas meiosis involves two cell divisions.
A comparison of the Eastern and Western fronts in WWI
The Civil War is often considered the most transformative event in US history. But how much did it really change American national identity? In this video, Kim compares the relative significance of the effects of the Civil War on American values.
Sal and World History Fellow Steven Schroeder discuss the fall of empires, from Achaemenid Persia, the Maurya Empire in India, the Han Empire in China, and the Roman Kingdom, Republic, and Empire in the Mediterranean.
Comparing what led to the rise of Achaemenid Persia, Maurya India, Han China, and the Roman Empire.
Seeing how an inhibitor can "compete" for an enzyme with the intended substrate.