Curated OER
Percent Problems
Converting percents to decimals, and the other way around, can be tricky. Sal shows young mathematicians how to simplify this process with two sample equations and one word problem.
Curated OER
Solvant Effects on Sn1 And Sn2 Reactions
Sal reviews the Sn1 and Sn2 reactions with comparable reactants. He discusses which electrons are lost or gained and the conditions that make one or the other process favorable.
Curated OER
Banking 18: Big Picture Discussion
Sal further ponders the meaning of wealth in this video, which explores the values of gold, land, and money. Touching on Adam's Smith's definition of wealth, the presentation discusses the philosophy of utility and what different media...
Khan Academy
Exponent Properties Involving Products
After a short review on exponents, Sal moves ahead to incorporate exponent properties into his sample problems. This video is a great resource for those who need both the steady pace of Sal's instruction, and also for those who need the...
Curated OER
Nucleophilicity (Nucleophile Strength)
Sal gives the details that affect nucleophile strength. He gives the examples of electronegativity producing a flourine anion, iodine becoming iodide, and a molecule such as the hydroxide ion. He compares their polarity, basicity and the...
Curated OER
Two-Step Equations
Sal adds a few more steps to these problems as he solves algebraic equations with two steps - though he states that "there's more than one way to do it." Those who become confused by increasingly complicated algebra problems on a test...
Curated OER
Stereoisomers, Enantiomers, Diastereomers, Constituational Isomers And meso Compounds
Sal works through a list of examples that demonstrate and review the different types of compound classification.
Curated OER
The Discount Rate
What happens when a bank out lends its reserves? Sal answers this question in a video about the discount rate, explaining that it is for the "lender of last resort" and outlining possible circumstances surrounding the need for such a rate.
Curated OER
Graphs of Linear Equations
Sal is plotting away in this video - but don't worry, it's nothing suspicious. He introduces linear equations, taking viewers through a few simple examples before applying the knowledge to word problems that are more complicated.
Curated OER
Pythagorean Theorem
Crossing into the realm of geometry with this video, Sal introduces the Pythagorean Theorem to viewers. He uses several examples (and right triangles) to illustrate the uses and application of the Pythagorean Theorem.
Curated OER
Nucleophilicity vs. Basicity
After introducing basicity in the last video and generalizing it as close to nucleophilicity, Sal studies electron donors and the stability of products and reactants. He compares and defines the 2 terms.
Curated OER
Solving Systems of Equations by Elimination
Elimination is another way to solve systems of equations besides graphing and substitution. Sal's lecture is clear and easy to understand even for struggling learners. By having a variety of options when faced with linear equations, one...
Curated OER
One Step Equations
Stating that "the fun thing about algebra is that you can always check your answer," Sal demonstrates the simplest ways to solve several algebraic equations. He specifies that viewers should focus on the steps he's taking and why he's...
Curated OER
Banking 13: Open Market Operations
Posing a central question about how the economy can increase or decrease its money supply (5:00), Sal launches into a discussion about an expanding, or "elastic" money supply that can change along with its economy. Viewers will finally...
Curated OER
Comparing E2 E1 Sn2 Sn1 Reactions
Sal presents certain mixtures of solvents and ions and runs through the factors deciding which reactions might happen in those contexts. This is an excellent review of not just the specifics of each reaction, but also the real-life...
Curated OER
Banking 15: More on the Fed Funds Rate
Going deeper into the concept of the Federal Funds Rate, this video guides viewers through the process of inter-bank lending, much like the previous video (Banking 14). Sal's easygoing approach is simple to understand and fun to watch.
Curated OER
Polymerization of Alkenes with Acid
Again, Sal starts his lecture on polymerization with a review of the structure of his main example. He draws it to show the valence electrons. The most likely behavior of the electrons is demonstrated, but then alternative mechanisms...
Curated OER
Banking 2: A bank's income statement
Using his example of a growing village bank, Sal (the narrator) explains the ins and outs of the banking business, mostly from the perspective of the banker. This point of view can be helpful for people who see the bank as an institution...
Curated OER
Banking 1
As an introduction to the institution and function of banks in society, this video walks viewers through the concept of banking with colorful annotations and simplified narration. The lecture evolves naturally into a discussion about...
Curated OER
Banking 4: Multiplier effect And the money supply
In the context of a discussion about real wealth versus the representation of wealth (money), Sal explains the multiplier effect and how 1000 pieces of gold can become 2710 pieces of gold. Viewers will appreciate the annotations and...
Curated OER
Banking 3: Fractional Reserve Banking
With just 1000 pieces of fictional gold, Sal takes viewers through the process of fractional reserve banking. He explains how deposits made into a bank can be both assets and liabilities, and the role of having reserves. Additionally, he...
Curated OER
Acid Chloride Formation
Follow through every behavior of the electrons and ions during the reaction between acetic chloride and its reactants, leading to the production of the acid halide.
Curated OER
Banking 14: Fed Funds Rate
With bright, simple diagrams, Sal explains the role of the Federal Reserve as it relates to lending rates between banks. He discusses open market operations and the way the "Fed" connects to Congress and the U.S. Government.
Curated OER
Aldol Reaction
By covering the carbon carbon bond mechanism, this video also reviews the enol and enolate ion and the keto-enol tautomerism. Sal uses an aldehyde in the example, but a ketone could be used as well. As with all of the other videos, Sal...