The differences between teaching case, teaching design, teaching record and teaching narrative: ① Teaching case and teaching plan: Teaching plan (teaching design) is a pre-conceived educational and teaching idea, a brief explanation of educational measures to be implemented and a reflection of teaching expectations; Teaching case is a description of the education and teaching process that has happened and reflects the teaching results. (2) Teaching cases and teaching records: they are also descriptions of education and teaching, but teaching records are based on facts (judgment of facts), and teaching cases choose content according to their purposes and functions, which must be reflected by the author (value judgment). ③ The connection and difference between teaching cases and narrative research: in the sense of "situational stories", educational narrative research reports are also "educational cases", but "teaching cases" refer to teaching narratives that are typical, contain difficult problems, narrate from multiple angles and reflect (or the author's comments); Teaching cases must start from the goal of teaching task analysis, consciously select relevant materials, and do field work well in advance. Therefore, the daily educational narrative diary can be accumulated and can be used as the material for writing teaching cases.