Using Cloud Class plus for online and offline hybrid teaching interaction mode: the case of the Applied Optics Course

Cloud Technology is changing the teaching mode of traditional higher education. The use of mobile teaching assistants such as "Cloud Class" and "Cloud Textbook" can effectively improve teaching efficiency and quality. On this basis, the online and offline hybrid teaching interaction mode based on "Cloud Class +" is constructed and applied to the teaching practice of the Applied Optics course. The online and offline hybrid teaching interaction model is introduced in detail from three aspects: pre-class preparation, in-class discussion, and post-class feedback. The practical results could provide useful references for solving hot topics and difficult problems in education and teaching.