Abstract: First-class personnel training, first-class curriculum is the core element. Taking the course of chemical reaction engineering as an example, the "three-step and six-step" online and offline mixed teaching pattern based on BOPPPS model is constructed. Based on the six steps of BOPPPS model, the mixed mode of online learning and offline teaching is combined to realize students' learning ways of "autonomous + cooperative + inquiry" and achieve the goals of knowledge, ability and quality. Through the reform of teaching mode, we have created first-class courses in line with the teaching characteristics of professional courses, which can provide reference for the construction of first-class courses of related majors in other colleges and universities.

Key words: Chemical reaction engineering, BOPPPS model, Mix online and offline, Teaching mode, Participatory learning, First-class course