Thinking about energy consumption for tilling land. Created by Sal Khan.
Solving the P/E conundrum by looking at a different valuation metric (enterprise value). Created by Sal Khan.
Enumerated and implied powers of the US federal government with a focus on the Commerce Clause and the Necessary and Proper Clause of the US Constitution.
Exploring the relationship between pH and enzyme activity.
Enzymes as catalysts for reactions in biological systems; discussion of substrates, active sites, induced fit, and activation energy.
Khan Academy video tutorial. Solving one and two step equations-this is made slightly more difficult than the Simple Equations tutorial by adding constants to the variable term.
Total surplus is maximized in a market at equilibrium. In this video, we talk about why this is and the math behind this assertion.
How are nominal real interest rates determined? In the money market! Learn about the money market in this video.
Debt vs. Equity. Market Capitalization, Asset Value, and Enterprise Value. Created by Sal Khan.
Escrow is a way of holding monies in a third-party account until all of the necessary aspects of a transaction have been carried out. In this video, learn about the role of escrow in real estate transactions, how escrow accounts work, and what an escrow agent is.
Overview of the estate tax. Created by Sal Khan.
An overview of the different types of evidence that support evolution, including homologous and analogous features and vestigial structures.
Evolution of political parties in picking candidates and voter mobilization.
A hairy resistance problem. Created by Sal Khan.
Tax incidence is a description of how the burden of a tax falls in a market. In this video we break down how to identify consumer surplus, producer surplus, tax revenue and tax incidence, and dead weight loss after a tax.
In this video explore a simplified example of how to calculate real GDP from nominal GDP using the GDP deflator. Created by Sal Khan.
Example identifying roles in a food web.
Illustrating the complexity of signal transduction with a MAPK pathway. How mutations in the pathway are linked to cancer.
Example punnet square for sex-linked recessive trait.
In this video, Sal walks through a practice exercise calculating the CPI and inflation.