Khan Academy
Resources
Stereochemistry
Online classJust like how your left foot doesn’t quite fit your right shoe, molecules also can have properties that depend on their handedness! This property is called chirality. We will go over what makes a...
Stocks and bonds
Online classMany people own stocks, but, unfortunately, most of them don’t really understand what they own. This tutorial will keep you from being one of those people (not keep you from owning stock, but keep...
Structure and bonding
Online classLet’s review the basics of chemical bonds including dot structures, hybridization, bond-line structures, electronegativity, and polarity. We will also discuss how bonding and intermolecular forces...
Structure of a cell
Cell Biology 9th - College | Online classYou, my friend, are made up of cells. Lots and lots of them. Some of them are eukaryotic (human), but many more of them are prokaryotic, thanks to the friendly bacteria of your gut, skin, and other...
Studying for AP Chemistry?
AP Chemistry High School | Online class2015 AP Chemistry free response 1e Writing the electron configuration of zinc, and figuring out which electron is removed during oxidation. From 2015 AP Chemistry free response 1e.
Studying for the AP Biology exam?
AP Biology High School | Online classPrepare for the AP Biology exam by going through real free-response questions from the 2015 exam with Sal!
Substitution and elimination reactions
Online classSn1, Sn2, E1, and E2 reactions form the basis for understanding why certain products are more likely to form than others. We will learn about the reaction mechanisms, and how nucleophilicity and...
Supply, demand, and market equilibrium
Market Economics High School - College | Online classThis tutorial (that only has one video) is an overview of what economics is. In particular it will tell you the difference between microeconomics (the subject you’re in right now) and...
Surveys of history
US History High School - College | Online classThe tutorials in this topic will take you on sweeping journeys through time so that you can get the really BIG picture for how things fit together.
Symbolism & Art Nouveau
Online classBy the 1880s artists such as Klimt, Khnopff, and Stuck turned from the academies and focused on the interior self by exploring dreams, myth and death.
Systems of equations
Online classWhether in the real world or a cliche fantasy one, systems of equations are key to solving super-important issues like “the make-up of change in a troll’s pocket”. This tutorial shows you how to...
Systems of equations
Online classHere we’ll see that you may be able to actually solve for two unknowns if you have two different constraints or equations. You can view this solution as being represented by the intersection of the...
Systems of linear equations
Online classSystems of equations: trolls, tolls (1 of 2) A troll forces us to use algebra to figure out the make-up of his currency. We end up setting up a system of equations.
Taxes
Personal Finance High School - College | Online classBenjamin Franklin (and several other writers/philosophers) tells us that “In this world nothing can be said to be certain, except death and taxes.” He’s right. This tutorial focus on personal...
Telling time
Telling & Working With Time Pre-K - 2nd | Online classFree classes and courses available for online learning at every level: Elementary, High school, and College lessons.
The 20th century
Online classCalled the Great War (before World War II came about), World War I was the bloody wake-up call that humanity was entering into a new stage of civilization. Really the defining conflict that took...
The avant-garde: Realism, Impressionism and Post-Impressionism
Online classDespite the brief dismantling of the Royal Academy during the French Revolution, art remained an extension of the power of the French State which regularly purchased art that it favored (often art...
The Civil War era (1844-1877)
Civil War 8th - College | Online classThe end of slavery. The beginning of a new era. The biggest conflict ever to happen on American soil. What caused the Civil War and how did it change the United States?
The coordinate plane
Online classWe first explored the coordinate plane in the 5th grade. But that was only dealing with positive coordinate. Now, however, we know all about negative numbers so why not have negative coordinates as...
The Himalayas
Online classNepal Secrets of the stupa (Video) Tibet Sacred arts of Tibet (Video) Bön, Tibet’s indigenous belief system (Article) Views of Tibet (Video) Introduction to Tibetan Buddhism (Article) Tibetan...
The historian's toolkit
Online classLearning about history isn’t all grabbing golden idols from caves and running away from giant boulders. In this tutorial, learn the skills that historians use to interpret primary documents, write...
The materials and techniques artists use
Online classAncient glass makers near Jerusalem discovered they could inflate hot glass to make vessels quickly and more cheaply. Watch this ancient technique (footage from t…
The modern era (1980-present)
Online class1980s America The presidency of Ronald Reagan issued in a more conservative era in the United States. The presidency of Ronald Reagan, part 1: Election and domestic policies Read about Reagan’s...
The monetary system
Online classMost modern economies use a counter-intuitive model of banking called “fractional reserve banking.” It is counter-intuitive (and some people would say wrong) because it allows banks to lend out...
The Pacific
Art History 7th - College | Online classThe arts of the Pacific vary by virtue of ecological situations, social structure, and impact of external influences, such as commerce, colonialism, and missionary activity. Created in a variety of...