Massive open online courses (large-scale open online courses) and large-scale open online courses are the products of "Internet+education". English literal translation "massive open online course" is a new online course development model.

The so-called "Massive open online course" (large-scale open online course), as the name implies, "M" stands for massive, which is different from the traditional courses with only dozens or hundreds of students. A large open online course has tens of thousands of students, up to 1.6 million; The second letter "O" stands for openness and interest-oriented.

Anyone who wants to study can come in to study, regardless of nationality, and only need one email address to register and participate; The third letter "O" stands for Online, where learning is completed without travel and time and space restrictions; The fourth letter "c" stands for of course, which means of course.