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This online course teaches SCSS syntax, nesting, functions, and more regarding the Sass styling language.

This online course gives an introduction to the C programming language. C is one of the foundational languages of computer science, for example used in operating systems. The...

In this online course, through scientific presentations, critical reflection and discussion, students learn current state-of-the art topics in the field of Ubiquitous Computing.

This online course introduces microeconomic concepts and analysis, supply and demand analysis, theories of the firm and individual behavior, competition and monopoly, and...

Khan Academy provides various free introductory microeconomics video lessons. Topics include supply, demand, market equilibrium, scarcity, preferences, consumers and producers,...

This online video lecture series gives an introduction to Computer Science, Internet technology and the basics of computer hardware (CS105 class at Stanford University). The...

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

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

Comprehensive language course in Turkish. The idea of this course is to learn the language "like a native". This means that the course creates an immersive learning experience...

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

This course presents the principles of evolution, ecology, and behavior for students beginning their study of biology and of the environment.

In this online course, "Gangster Gardener" Ron Finley teaches gardening skills and techniques, including how to grow your own food, keep your plants alive, and find beauty and...

This series of online courses explores the fundamental building blocks of computer science, including programming, development, algorithms, and data structures. The program...

Khan Academy provides various free introductory video lessons on astronomy and cosmology. Topics include the scale of the universe, the Big Bang, stars, black holes, galaxies,...

This online video lecture series explores various technology trends and fields of innovation.

This course teaches how to program in Ruby, a flexible language used to create many websites.

Die Online-Kurse der KhanAcademy geben eine erste Einführung in die Programmierung für Anfänger. Enthalten sind die Sprachen JavaScript, HTML, CSS und SQL.

This online lecture examines the neural bases of sensory perception. The focus is on physiological and anatomical studies of the mammalian nervous system as well as behavioral...

In this online course, NBA champion Stephen Curry teaches basketball. The course includes more than 15 video lessons and various supplemental materials.

This online lecture covers the fundamentals of signal and system analysis, focusing on representations of discrete-time and continuous-time signals (singularity functions,...