Learning Resources by

Khan Academy

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Resources

Free

Vectors

Online class

Watch Sal figure out which of a few options could be represented by a vector. Remember that vectors have both magnitude and direction!

Free

Vectors and spaces

Online class

We will begin our journey through linear algebra by defining and conceptualizing what a vector is (rather than starting with matrices and matrix operations like in a more basic algebra course) and...

Free

Victorian art and architecture

Art History
College | Online class

In 1848, a small group of young artists banded together and formed “The Pre-Raphaelite Brotherhood,” a name which sounds intentionally backward-looking and medieval. The Pre-Raphaelites looked back...

Free

Volume and surface area

Online class

Volume and surface area help us measure the size of 3D objects. We’ll start with the volume and surface area of rectangular prisms. From there, we’ll tackle trickier objects, such as cones and...

Free

Water, acids, and bases

7th - College | Online class

Water is key to life, and hydrogen bonding is key to understanding water! Learn how the structure of water and the properties of O and H atoms allow water molecules to “stick” to each other via...

Free

Welcome to grammar!

Grammar
4th - High School | Online class

Khan Academy Grammarian David Rheinstrom welcomes you to his favorite topic: the study of language, its rules, and its conventions. By understanding English – …

Free

West Africa

High School - College | Online class

The Republic of Mali is part of West Africa and has a varied geography. In the south and west are verdant river valleys while the north and east jut into the Sahara Desert. It is a French speaking...

Free

West and central Asia: 500 B.C.E.-1980 C.E.

9th - College | Online class

The arts of West and Central Asia play a key role in the history of world art, giving form to the vast cultural interchanges that have occurred in these lands that link the European and Asian peoples.

Free

Work and energy

Work & Energy
High School - College | Online class

“Energy” is a word that’s used a lot. Here, you’ll learn about how it’s one of the most useful concepts in physics. Along the way, we’ll talk about work, kinetic energy, potential energy,...

Free

World history

World History
7th - College | Online class

Called 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...

Free

World War I, Futurism and Dada

High School - College | Online class

Boccioni and the Futurists responded very differently than did Duchamp and the Dada artists to the violence of the Great War. Dada was an anti-art movement that sought to subvert the function of...