The course takes winter solstice as the theme, introduces the custom of making and eating dumplings on the winter solstice, introduces the story of the medical sage and dumplings, and let students know the noble character of the medical sage Zhang Zhongjing, and the custom of eating dumplings on the winter solstice to commemorate him. The course is divided into 3 parts: 1. Through the countdown video of 24 solar terms of Beijing Winter Olympic Games, 24 solar terms originated from farming in the Central Plains will be introduced. The winter solstice is the solar term with the coldest weather, the shortest day and the longest night. 2. Let learners know the custom of eating dumplings on the winter solstice. 3. The origin of dumplings introduces the story of Zhang cooking medicine for patients and relieving their pain.