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Khan Academy provides various free lessons for learners who prepare for the SAT test.

This course teaches how MOS transistors work, and how to model them. The understanding provided in this course is essential not only for device modelers, but also for designers...

Khan Academy provides various free introductory physics video lessons. Topics include velocity and acceleration, forces and Newton's laws of motion, gravitation, energy,...

This online language teaching method/app includes various languages, such as a German, English, Spanish, French, and Italian language course, and more.

Khan Academy provides various free lessons for learners who prepare for the MCAT test.

This online course teaches how to manage data with SQL, including mastering complex commands to manipulate and query data stored in relational databases. It includes topics such...

This online course (MOOC) explores gender identity and the gender spectrum by analyzing the real-life experiences of six transgender children and their families.

Free Spanish language app with many short tests to learn "on the go". (Not a video course.)

This online course teaches how to build powerful interactive applications with this popular JavaScript library. React is an open source library developed by Facebook.

This online course teaches intermediate techniques to transform table data in SQL.

Khan Academy provides various free introductory mathematics video lessons. Topics include elementary math, algebra, geometry, calculus, trigonometry, differential equations,...

Free French language app with many short tests to learn "on the go". (Not a video course.)

This online course shows how to use IBM's Personality Insights API and interact with Twitter; participants should be familiar with Python for this course.

This online course teaches how to use color effectively to create attractive and useable websites.

This course teaches how to add sign up, log in, and log out functionality to Rails apps, as well as how to manage access to specific pages.

Khan Academy provides various free introductory computer science video lessons. Topics include algorithms, cryptography, information theory, computer hardware and software,...

Khan Academy provides various free introductory anatomy video lessons. Topics include the circulatory system, respiratory system, urinary system, hematologic system, immunologic...

Khan Academy provides various free introductory chemistry video lessons. Topics include atoms and compounds, chemical reactions, the periodic table, chemical bonds,...

Khan Academy provides various free introductory video lessons on the history of the United States.

These online lessons explain the basics of lower extremity anatomy. In addition to the free video lessons, further (paid) trainings are available.