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

This online lecture covers selected aspects of landscape architecture. [Note: Part 1 "Landschaftsarchitektur I" was read in German.]

This online lecture series presents real-world examples in which quantitative methods provide a significant competitive edge for companies. The lectures present the key...

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

In this online course, Oscar nominee Samuel L. Jackson teaches acting. The course includes more than 20 video lessons and various supplemental materials.

This online lecture provides an introduction to the chemistry of biological, inorganic, and organic molecules.The emphasis is on basic principles of atomic and molecular...

In this online course, legendary comedian Steve Martin teaches the art of comedy. The course includes more than 20 video lessons and various supplemental materials.

This online video lecture series gives an introduction to Machine Learning.

This course teaches how to build web apps with Ruby on Rails 4, giving learners the skills to use Ruby on Rails to create their own apps.

This online course teaches how to create websites by structuring the pages with HTML.The course is designed for beginners and includes HTML elements and structures as well as...

This online course provides a basic introduction to metric spaces. It covers metrics, open and closed sets, continuous functions (in the topological sense), function spaces,...

This online course teaches basic programming knowledge to build your first PHP websites.

This online lecture provides an introduction to optical science with elementary engineering applications.

This online lecture series gives an introduction to galaxies and cosmology. It includes the Milky Way and the Local Group as well as larger-scale structures of the universe.

In this online course, beauty industry icon Bobbi Brown teaches the tips, tricks, and techniques for applying simple, natural makeup. The course includes more than 15 video...

This online lecture series discusses various aspects of metaphysics.

This online course teaches how to use Java to build mobile apps for Google’s Android operating system.

This online course teaches Flask, a framework to turn Python programs into web sites and apps.

This online lecture series gives an introduction to Greek history. It traces the development of Greek civilization as manifested in political, intellectual, and creative...

This online lecture series gives an introduction to biology. It focuses on the basic principles of biochemistry, molecular biology, genetics, and recombinant DNA. The course...