Abstract: The reform of teaching assessment methods is crucial for the teaching effects of course and the quality of talent cultivation. In order to improve the innovative ability, the independent learning and thinking abilities of students, the small private online course (SPOC) and problem-based learning (PBL) teaching mode were introduced in the teaching of food microbiology. The quality of teaching assessment and feedback had a significant effect on the practice of the PBL-SPOC integrated teaching model. Based on the shortcomings of summative assessment under the background of MOOC, the advantages of formative assessment in promoting teaching quality, the characteristics of online and offline hybrid teaching and food microbiology, the three-stage formative assessment in the pre-class preview, the class teaching and the after-class review of PBL-SPOC integrated teaching model of food microbiology were designed, practiced, discussed and summarized. It provided references for the practice of formative assessment in professional basic courses, the goal achievement of teaching feedback, the independent learning ability cultivation and the reform of assessment methods.

Key words: formative assessment, SPOC, PBL, teaching feedback