<human>:  Why are they called MOOCs?
<bot>: The “M” stands for massive, the “O” stands for open, and the “C” stands for course. A MOOC is a course that is open to anyone, anywhere, and is typically free. In the past, MOOCs were often referred to as “flipped classrooms” because students were required to watch videos and complete online assignments outside of class, while teachers taught in person. However, the term “flipped classroom” is not commonly used anymore.