“OpenCourseWare”, OCW, was a proposal about knowledge sharing from the educational technology conference held by the Massachusetts Institute of Technology in 1999. In 2002, UNESCOs Forum also mentioned the concept of the “Open Educational Resources” that high-quality materials and resources should be organized into digital formats and authorized to be free and open in network for public sharing and learning, including using, adapting, and re-using. (Taiwan OCW Consortium, 2014). While the “Flipped classroom”, an educational concept originated in 2007 by two chemistry teachers, Jon Bergmann and Aaron Sams, from Colorado Woodland Park High School, was applied to solve the problem of students’ learning due to absence. They started using PowerPoint with narration and pre-recorded videos on YouTube for students’ own Internet browsing and learning and then they found this model quite effective on students’ preparation for the lessons along with the interactive learning with teachers. Thus the "Flipped classroom" became widely spread around the world.
The researcher has served as the instructor of secondary music teacher education for twenty years. Being aware of using more effective ways to enhance the quality of the related courses, she tried to figure out the idea of the "Flipped classroom" based on the OCW courses that she had built on NTNU Websites in recent years. The conclusions would be stated into three dimension: the open and sharing systems of curriculums, the curriculum design and implemental strategies, the evaluation, adjustment and support of curriculum development.