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This document discusses overcoming barriers to implementing new teaching techniques through the use of flipped learning in teacher development. The main barriers are resentment from teachers, assumed aversion to new procedures that may require more work, and lack of faith due to previous experiences. To overcome these barriers, the document recommends engaging teachers, asking for their support and advice rather than instructing them, and convincing senior management to give teachers autonomy. It then discusses a case study where flipped learning techniques were used in teacher development sessions and the observations of teachers who participated.