The 4 R's are a helpful reminder of the steps involved with learning, and to always find angles and approaches where the learning can be applied to a student's and/or teacher's immediate reality is an excellent reminder to ask (and answer) "WHY doe what we are learning matter, and for WHOM?"
Also, the opening of dialogue and sharing amongst the cohort has generated the most positive reactions, a democratization of the learning process which helps the students to feel empowered and also flips the classroom by allowing them to participate in the teaching process.