Collaborative learning, cooperative learning, project learning, rhizomatic learning.
Subtile differences, not always easy do distinguish them from each other.

In this context the work of Niels Jakob Pasgaard is interesting.

As learners create their own curriculum, they could learn each other things that others believe to be (proven) untrue.
How you look upon reality, is important, and determines for a big part how free you can let your learners be in determining the content of the curriculum. At least when you’re in a official program.
More on this at: http://openeducationeuropa.eu/nl/node/131560