Broadly, it starts with reconfiguring the physical space of learning — students are clustered in small groups with a centralized teacher able to move through and around the room to provide personalized, direct instruction. The goal is to shift the focus from the teacher to students to foster more peer-to-peer learning, promote group collaboration, and encourage critical thinking.
http://labs.pearson.com/so-what-are-these-classrooms-of-the-future/