The approach is not to simply put lectures and course work online, as is typical of massive open online courses, or MOOCs. Rather, Carrasquel will use a blended learning approach that largely replaces formal lectures with videos and optional mini-lectures, and uses an online software application called Classroom Salon to identify concepts that need to be reinforced by instructors in small group meetings with students. “As we teach a wider diversity of students, with different backgrounds, we can no longer teach to ‘the middle,’” Carrasquel said. “When you do that, you’re not aiming at the 20 percent of the top students or the 20 percent at the bottom.”

http://www.cmu.edu/news/stories/archives/2015/june/computer-science-blended-learning.html