Problem Based Learning in the flipped classroom is centered around the presentation of a problem, not lectures or assignments or exercises. Since "content obtainment" is not at the center of learning, the classroom becomes an active center for discovery using content as a support to solve a problem. Scaffolding through the process of reasoning is to retrieve information through the effective use of references. This is not to say that learning is content free. Learning in fact is the use of multiple constructed content references that is project oriented to real life situations. To use content in multiple references allows the learner to construct higher levels of thought while blending multiple resources into conceptual understanding.
When scaffolding within the flipped classroom the facilitator establishes themselves as the master of continent allowing for meta-cognitive questioning to occur in higher frequency. In other words leaving behind the idea of traditional practices of burning information into the neural circuits and acknowledging that resources to the information age will always hold more than what individual memory can store. This approach will require the flipped classroom facilitator to construct reasoning proficiencies within the students learning environment. Constructing reasoning proficiencies is the third paradigm shift to 21st Century Learning. For more information on 21st Century Learning Practices go to the Digital Sandbox and learn more about how active learning becomes an integral part of the Common Core.