Khan Academy
Hawaiian Islands Formation, Cosmology and Astronomy
Sal explains the formation of Hawaii and the theories behind the formation of a boundary-related hot spot. He debates the concept that the hot spot is traveling along with the plate.
Khan Academy
Plate Tectonics—Geological Features of Convergent Plate Boundaries
Recap divergent and convergent boundaries with a video on plate tectonics. After discussing the circumstances surrounding subduction at oceanic and continental plates versus subduction at two oceanic boundaries, the video explains the...
Khan Academy
Angle Game (Part 2), Angles and Intersecting Lines
Teach your class the angle game! Pupils must find a designated angle starting with a star and three given angles. Sal, the narrator, encourages viewers to pause and figure it out on their own and then gives a few hints before he slowly...
Khan Academy
Angles (Part 2), Angles and Intersecting Lines
The second video in the series on angles explores the concept of supplementary and complementary angles. It also explains intersecting lines and opposite angles.
Khan Academy
Wealth Destruction 2, Finance and Capital Markets
Continuing from the past video on wealth bubbles, Sal begins by recapping what scholars saw in the first segment. He then goes into more depth on bank-owned homes, short sales, foreclosures, and wealth destruction. Scholars begin to...
Khan Academy
Pegging the Yuan, Money, Banking and Central Banks, Finance and Capital Markets
Sal reviews the hypothetical currency balance between China and the US under an ideal market scenario, then explains the Chinese government's motivations (both optimistic and more cynical) to prevent the Yuan from appreciating and...
Khan Academy
More on IPOs, Stocks and Bonds, Finance and Capital Markets
Although mainly reviewing previous videos, Sal delves further into the details of IPOs and explores the reasons companies raise equity and others purchase it. As he describes the assets and equity of a business, note that there is an...
Khan Academy
Introduction to the Price-to-Earnings Ratio, Finance and Capital Markets
Young economists explore the price-to-earnings ratio (and the earning-to-price ratio) as Sal explores the case study from previous videos. He lays out the market capitalization for the company and the price per share, explaining that it...
Khan Academy
Introduction to the Income Statement, Stocks and Bonds, Finance and Capital Markets
Making money in a company is challenging, as scholars discover in this clip on the introductory income statement. Sal explains this and lays out a scenario showing a company's various revenue subtractions to get the money paid to owners....
Khan Academy
Getting a Seed Round from a VC, Stocks and Bonds, Finance and Capital Markets
After reviewing his hypothetical business startup, Sal outlines the stock distribution based on the pre-money valuation and a $5 million investment from an angel donor. He reviews the fluctuating percentage of ownership once an investor...
Khan Academy
Floating Exchange Resolving Trade Imbalance
In a hypothetical global trade scenario, Sal lays out an import-export relationship between the United States and China. Through supply-and-demand logic, he describes a situation where the US dollar would weaken, and the Chinese Yuan...
Khan Academy
Floating Exchange Effects on China
Now that we understand what the Chinese Government does to keep its currency artificially suppressed, Sal explores what might happen if they were to allow a free-floating exchange against the dollar. He outlines the hypothetical ripple...
Khan Academy
Enterprise Value, Stocks and Bonds, Finance and Capital Markets
Watch the previous video on the P/E problem before this one, as it builds off of the hypothetical scenario to provide a valuation solution to the pizzerias with different capital structures. Sal reviews the superficial market...
Khan Academy
EBITDA, Stocks and Bonds, Finance and Capital Markets
The review of enterprise value calculation is constructive in this clip; Sal once again explains how market capitalization can be a misleading valuation metric. He breaks down an example and plugs in numbers to get the EV, then presents...
Khan Academy
Earnings and EPS, Stocks and Bonds, Finance and Capital Markets
Continuing from his video on the income statement, Sal reviews the scenario from the last clip before expanding on the net income concept. He introduces the term "earnings" and calculates earnings per share for the hypothetical company....
Khan Academy
Detectable Civilizations in Our Galaxy 5, Cosmology and Astronomy
The lecturer discusses reasons why we haven't detected any of the possible 12.5 civilizations deduced to be residing in the Milky Way Galaxy based on the Drake equation. The space between possible civilizations is discussed, as is the...
Khan Academy
Depreciation, Stocks and Bonds, Finance and Capital Markets
To effectively demonstrate a capital asset's depreciation, Sal outlines a company's COGS over four years, including a factory tooling cost required every two years. As he calculates the operating profit, learners see that the company,...
Khan Academy
Debt Loops Rationale and Effects
Now that scholars understand more about currency imbalance and artificially suppressed currency, Sal discusses the motivations of the different actors. He briefly touches on the difficulty of unwinding a cycle like this once it has...
Khan Academy
Data on Chinese US Balance of Payments
Sal references the US Bureau of Economic Analysis to demonstrate discrepancies in US imports and exports with actual documentation. A financial account chart documents the inflow and outflow of asset ownership, and Sal observes how few...
Khan Academy
Data on Chinese M1 Increase in 2010
To prove the points about the Chinese-US trade imbalance Sal made in previous videos, he presents documentation from the Chinese Central Bank that shows the M1 money supply every month. He compares the total Yuan supply from November...
Khan Academy
Data on Chinese Foreign Assets Increase in 2010
In further analysis of the Chinese Central Bank's documentation, Sal examines how much of the M1 supply increase was spent on foreign assets. He calculates the numbers for 2009/10, converting them to dollars to help scholars comprehend...
Khan Academy
Currency Exchange Introduction
Learners are introduced to fluctuating currency exchange rates and the role of supply and demand in this context. They understand the inverse relationship between supply and price based on these concepts and view a hypothetical scenario...
Khan Academy
Credit Default Swaps
A pension fund would like to loan money to a company, but the company's bond rating isn't high enough. Sal discusses the private entities that issue ratings and credit default swaps, illustrating nicely how a higher-rated company can...
Khan Academy
CPI Index, Inflation, Finance and Capital Markets
Get an introductory course on inflation and the Consumer Price Index as Sal breaks down American disposable income based on government analysis. He focuses on housing percentages, explaining inconsistencies in the rental equivalence...