The Best Free Online Courses for Students 2021
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Hello to all self-education lovers. Today I will tell you everything I know about using this service to increase your intelligence. Nonprofit organization Khan Academy makes its online courses free for all. It focuses primarily on content for students in the US schools, but it's a reliable source for anyone with a hunger to learn.

Where can you go online to learn—not just learn to solve an immediate problem, but advance your understanding of a topic or start studying something from scratch?

For most academic subjects, the best place is Khan Academy. Khan Academy is a free online learning service with course material covering math, science, art history, and other subjects. The lessons contain videos, readings, and interactive components, which are sequenced so that you can start from square one with any subject and slowly build your knowledge.

In July 2020, the site announced it would concentrate more acutely on kindergarten through early college courses and was thus retiring materials that fall outside that scope.

There are some small gaps in the content catalog; Khan doesn't offer classes in music, music appreciation, or foreign languages, for example. It does, however, offer its courses to speakers of other languages, namely, Spanish, French, and Brazilian Portuguese. In other words, you can take Algebra I taught in Spanish rather than English. Support for more languages is in the works. Given what it offers and the fact that it's entirely free to use, Khan Academy is the best learning site for academic subjects and an Editors' Choice.

Khan Academy started when its founder, Sal Khan, began tutoring his cousin. At the time, Khan was a financial analyst. He recorded videos of a virtual blackboard with voice-over narrations to explain different concepts in mathematics to his cousin. He began posting these lessons on YouTube.
Over some years, the concept grew into Khan Academy, a nonprofit organization that cultivates academic courses and makes them freely available online. To this day, Khan Academy has a reputation for being strong in math, as well as economics and finance, and it has partnered with other institutions and educators to expand into other fields.
Khan Academy caters to students in the American education system. Plenty of its courses stick to the formal curriculum for different grade levels.

In addition to math, economics and finance, Khan Academy covers science and engineering; computing; arts and humanities; test prep; college prep; career prep; and English language arts. Most of these topics have specific courses within them. For example, you can enroll in Precalculus, US history, and an LSAT prep course. There's no limit on the number of courses you can take.

There are materials for young learners ages 2 to 7, too, in a mobile app called Khan Academy Kids. There's an iPhone app, an iPad app, and an Android app. For students in primary school, there are courses in English language arts and math that align with school years, such as Second Grade Math.

Another example is AP courses. AP, or Advanced Placement, is a program in the US in which students can take courses in high school, if they qualify, that count toward their undergraduate degree. In other words, students can take a university course before paying for university, and if they pass a standardized exam at the end, they get college credit. The AP courses on Khan Academy prepare students in the subject matter, but the students still have to take the formal test wherever it's given; they cannot take the test or receive the final credit via Khan.