A massive open online course (MOOC) is an online course aiming at large-scale interactive participation and open access via the web. In addition to traditional course materials such as videos, readings, and problem sets, MOOCs provide interactive user forums that help build a community for the students, professors, and TAs. MOOCs are a recent development in distance education and often use open educational resources. Typically they do not offer academic credit or charge tuition fees. Only about 10% of the tens of thousands of students who may sign up complete the course