Most Downloaded Items Last Week more

1. Basic Addition
   112 downloads
2. Simple Equations
   68 downloads
3. Elements and Atoms
   64 downloads
4. Introduction to Limits (HD)
   56 downloads
5. US History Overview 1: Jamestown to the Civil War
   53 downloads
6. Introduction to Programs Data Types and Variables
   52 downloads
7. Basic Trigonometry
   49 downloads

Most Downloaded Items more

1. Simple Equations
   38,560 downloads
2. Basic Addition
   25,244 downloads
3. Liar Truthteller Brain Teaser
   18,646 downloads
4. Equations 2
   16,076 downloads
5. Place Value 1
   15,106 downloads
6. Algebra: Linear Equations 4
   13,027 downloads
7. Introduction to Programs Data Types and Variables
   12,991 downloads

Spotlight Item

Simple Equations
Introduction to basic algebraic equations of the form Ax=B

About the Internet Archive

Background

Frequently Asked Questions

2,737 itemsWelcome to Khan Academy

The Khan Academy is a non-profit educational organization created in 2006, by Bangladeshi American educator Salman Khan. With the stated mission of "providing a high quality education to anyone, anywhere", the website supplies a free online collection of more than 2,400 micro lectures via video tutorials stored on YouTube teaching mathematics, history, finance, physics, chemistry, biology, astronomy, economics and now computer science.
Browse by Subject / Keywords

All items (most recently added first) -

Recently Reviewed Items (more)

Cosine Taylor Series at 0 (Maclaurin)
Average rating:

Calculus: Derivatives 2
Average rating:

This Just In (more)

Normal Forces on Lubricon VI
97 days ago

2003 AIME II Problem 13
281 days ago

Calculus: Derivatives 2
Average rating:
281 days ago

Enthalpy
281 days ago

Solvent Effects on Sn1 and Sn2 Reactions
281 days ago