Exploration and Practice of Online and Offline Blended Teaching Mode for Chemical Reaction Engineering Based on Goal Problem Orientation

In view of problems existing in the teaching process of Chemical reaction engineering, i.e., low level of knowledge on reaction kinetics and reactors, weak ability to solve complex reaction engineering problems and design reactors considering safety and energy saving, the course adopts an online and offline blended teaching mode based on “goal problem orientation”, introduces petrochemical production cases, and reconstructs the teaching content with “five types of goal problems”. Based on the national digital “process simulation + virtual simulation + engineering training” platform, the intelligent practical teaching with the penetration and integration of production and education is implemented after class, and thus students' awareness of safety and energy conservation is cultivated, finally improving their engineering practice ability and comprehensive application ability. Build a flipped classroom through “Rain classroom” + “Chaoxing Learning” and Internet+ big data feedback. Ideological and political education is implemented through well-designed goal problems and the “Quality extension project”. The results of questionnaire feedback showed that 80% of students believed that their “engineering consciousness” had been enhanced, and their “critical thinking ability” and ability to connect theory with practice had been improved. Moreover, their participation in classroom increases, and the excellent rate of the latest “Chemical reaction engineering” final exam paper score has increased to 25%.